TL;DR: Bilateral coordination is your child using both sides of their body together in an organized way. It develops in three stages, and they build on each other in order. This guide covers all three, 15 activities matched to each stage, why crossing the midline matters, and the signs worth mentioning to your pediatrician. If scissors are a struggle, the fix usually starts two stages earlier.
Introduction
Picture a preschool class doing jumping jacks. Most kids are roughly in sync. One child's arms go up while the legs stay planted, then the legs jump while the arms hang down. They are trying hard. The two halves of their body just will not agree.
That same child is probably also struggling with scissors. Those two things are not a coincidence, and that connection is the most useful thing in this article.
Bilateral coordination activities for kids work best when you know which stage your child is on. The skill develops in three stages that build on each other, and most activity lists throw all three at you in one jumbled pile.
That matters because of the order. A child who cannot yet get their arms and legs to move together on a jumping jack is being set up to fail when you hand them scissors, because cutting sits at the top of a ladder they have not climbed yet.
So this guide is built in stages. You will get the three types of bilateral coordination in developmental order, 15 activities sorted to match, a section on crossing the midline, and a clear list of signs worth raising with your pediatrician.
What Is Bilateral Coordination?
Bilateral coordination is the ability to use both sides of the body together in a controlled, organized way. Occupational therapists also call it bilateral integration, because it depends on communication between the two sides of the brain. When the skill is developing well, it is a sign that both hemispheres are sharing information effectively during everyday tasks.
It starts far earlier than most parents realize. Occupational therapy sources tracing the developmental sequence describe symmetric two-handed use appearing between about 3 and 10 months, as babies bring their hands to the middle to grasp and explore. Around 10 months, an infant can hold something with one hand and work on it with the other. By 12 to 18 months, clapping and banging objects together show up.
One thing worth knowing before we go further: it is not purely a hand skill. Occupational therapists assessing bilateral coordination also look at core strength, motor planning, and visual-motor integration, because a wobbly trunk gives the arms nothing stable to work from. Body awareness, meaning your child's internal sense of where their limbs are without looking, is another foundation underneath it.
The Three Types of Bilateral Coordination
Here is the framework that makes everything else make sense. Bilateral coordination develops sequentially through three stages, and a child generally needs to master each one before the next comes easily.
Stage 1: Symmetrical. Both sides do the same thing at the same time. Jumping jacks, catching a ball with two hands, using a rolling pin, pulling up socks, clapping.
Stage 2: Alternating. Both sides work in rhythm but in opposite phase. Climbing, hopscotch, marching, riding a bike, swimming, animal walks.
Stage 3: Dominant hand plus stabilizing hand. One hand leads while the other holds steady. Cutting with scissors while the other hand holds the paper, writing while the helper hand anchors the page, buttoning, tying shoes, opening a jar.
A quick note on wording: different sources label these differently. Some call stage 2 alternating, others say reciprocal, and a few use asymmetrical for stage 3. The names vary but the developmental order is consistent, so focus on what the body is doing rather than the label.
Stage 3 only becomes possible once hand dominance starts settling, because a helper hand needs a leader to help. That is why a four-year-old who still switches hands constantly finds scissors so hard. They are being asked to do stage 3 work without stage 3 equipment.
Most of the tabletop activities in stage 3 overlap with fine motor work, and we covered those in detail in our guide to fine motor skills activities for preschoolers. This post spends more time on stages 1 and 2, because that is where the foundation gets built and where most parents skip ahead.
Why Does Bilateral Coordination Matter?
Bilateral coordination underpins handwriting, self-care, and sports all at once. Handwriting in particular depends on it: one hand manipulates the pencil while the other stabilizes the paper, and a child who cannot hold the page steady produces messy work no matter how good their grip is.
Think about how much of a school day quietly requires two hands doing different jobs. Cutting out a shape. Holding a ruler while drawing a line. Opening a lunch container. Getting a coat on. Putting a worksheet into a folder. None of these look like coordination tasks, and all of them are.
Self-care follows the same pattern. Buttons, zippers, and shoelaces are all stage 3 tasks, which is why they tend to arrive later than parents expect and why they generate so much morning frustration.
The pencil side of this connects to grip development too. If you want the detail on how the writing hand itself matures, we mapped out how kids learn to hold a pencil stage by stage.
There is a confidence dimension as well. Bilateral tasks are visible ones. A child who cannot skip, pedal, or do a jumping jack notices that their friends can, and that noticing tends to turn into avoidance well before any adult spots a problem.
What Are the Best Bilateral Coordination Activities for Kids?
The best bilateral coordination activities match your child's current stage. Start with symmetrical movements like jumping jacks and rolling pins, progress to alternating patterns like animal walks and bike riding, then move to tasks where one hand leads and the other stabilizes, like cutting and lacing. Working in order builds a foundation instead of exposing a gap.
Here are 15, grouped by stage.
Stage 1: Symmetrical (both sides, same action)
1. Jumping jacks. The classic, and a genuinely hard one. If your child struggles, try slow motion, or break it into arms only and legs only before combining them.
2. Rolling pin play. Rolling out playdough or dough with two hands on a rolling pin is a pure symmetrical task, and it doubles as hand strengthening.
3. Two-handed catching. Catching a large ball with both hands together. This one also builds tracking, which we cover in our guide to hand-eye coordination activities.
4. Clapping games and drums. Patty-cake, clapping rhythms, and banging two objects together are all symmetrical work disguised as music.
5. Two-handed bubble popping. Clapping both hands together to pop a bubble adds a moving target to a symmetrical movement.
Stage 2: Alternating (both sides, opposite phase)
6. Animal walks. Bear crawls, crab walks, and inchworms are staples in occupational therapy. Chicago Occupational Therapy lists animal walking alongside body awareness games like Simon Says and the Hokey Pokey.
7. Wheelbarrow walking. You hold your child's legs while they walk on their hands. It builds alternating arm movement and, just as importantly, the core and shoulder strength that everything else depends on.
8. Climbing. Playground ladders, rock walls, and stairs all demand opposite arm and leg patterns. NAPA Center therapists point to climbing as a way to build the core foundation under coordinated arm and hand movement.
9. Hopscotch. Alternating feet in a sequence, with a throwing element added on top.
10. Bikes and scooters. Pedaling is alternating coordination in its purest form. A balance bike or scooter works too, since steering with both hands while pushing with one foot is its own version of the pattern.
Stage 3: Dominant hand plus stabilizing hand
11. Cutting with scissors. The hallmark stage 3 task. Watch whether the helper hand actually holds and turns the paper, because forgetting to stabilize is the classic sign of a gap.
12. Threading beads and lacing cards. One hand holds the card or string steady while the other threads.
13. Hole punching. A single-hole punch takes real hand strength plus a helper hand positioning the paper.
14. Opening containers. Jars, snack tubs, and zip bags all need one hand to grip while the other twists or pulls. Let your child open their own snacks even when it is slower.
15. Vertical surface coloring. Tape paper to a wall and have your child hold it with one hand while coloring with the other. This is a favorite OT setup because it forces the helper hand to work and builds wrist extension at the same time. It is one reason coloring books work as a learning tool rather than just a quiet activity.
Crossing the Midline, and Why It Matters
There is a related skill that sits right alongside bilateral coordination, and it is worth understanding on its own.
Picture an imaginary line running down the center of your child's body from head to feet. Crossing the midline means reaching a hand or foot across that line to do something on the opposite side. Reaching across the table with the right hand to pick up a crayon on the left, rather than switching hands at the middle.
It sounds trivial. Neurologically it is not. The two hemispheres of the brain are connected by the corpus callosum, the bundle of nerve fibers that lets the two sides communicate. Crossing the midline requires that communication, which is why therapists treat it as a window into how well the hemispheres are working together.
Timing looks roughly like this. The skill begins around 4 to 6 months when babies first reach for toys, should be showing up regularly by around age 2, and one research paper notes that a child is generally expected to cross the midline by age 5. It keeps refining into late elementary school, around age 8 or 9, as core stability improves.
Kids who avoid it have a recognizable look. They tend to switch hands at the middle rather than reaching across, and the overall effect reads as uncoordinated and effortful. One occupational therapist describes it as though an invisible panel blocks the arm from passing the center of the body.
Why it is worth addressing: midline crossing supports the development of a dominant hand, and without a settled dominant hand, stage 3 tasks stay hard. The same source notes that difficulty crossing the midline can show up as letter and number reversals and trouble writing smoothly left to right. If reversals are what you are seeing, our guide to visual perception activities covers the other half of that picture.
Three easy midline activities:
- Infinity tracing. Draw a large sideways figure eight on a vertical surface. Have your child stand at the center and trace it in a different color each time, keeping one hand on the marker the whole way around.
- Cross-body toe touches. Right hand to left foot, then switch. Slow and silly beats fast and sloppy.
- Sticker cues. Put a sticker on one hand and call out which side to use. It gives your child a visual reminder of which limb is meant to cross.
Signs of Poor Bilateral Coordination
Mention it to your pediatrician if your child frequently switches hands mid-task instead of settling on one, forgets to hold the paper while cutting or writing, avoids scissors and lacing, or struggles noticeably with skipping, clapping games, or pedaling compared to peers.
Occupational therapists describe the classic pattern as a child who uses a dominant hand but forgets to stabilize the paper, switches hands often, and gets frustrated when a task requires both hands to meet in the middle.
Other things worth noting:
- Trouble with sequenced movements like climbing stairs foot over foot, skipping, or clapping patterns
- Avoiding rhythmic activities such as dancing or instruments
- Dropping things often during two-handed tasks
- Frustration or avoidance around buttons, zippers, and shoelaces well past the usual age
- Generally clumsy or effortful movement that peers seem to manage easily
None of this is a diagnosis, and plenty of kids simply need more practice at a stage they skipped. Development is uneven, and a child who spent their time drawing rather than climbing may have a strong stage 3 and a thin stage 2. But an occupational therapist can evaluate quickly, and starting earlier is easier than starting later.
The Takeaway
Bilateral coordination is not one skill. It is three, and they arrive in order.
If your child is struggling with scissors, resist the urge to drill scissors. Check whether they can do a jumping jack first, and whether they reach across their body without switching hands. The gap is usually further down than where the frustration shows up.
Three things to hold onto. Work in stage order, because stage 1 is what makes stage 3 possible. Do not skip the gross motor stuff, since climbing and animal walks build the core strength that steady hands sit on top of. And watch for hand switching at the midline, which is the single most visible early clue.
For a stage 3 activity your child will actually stay with, tape a page to the wall and let them hold it steady while they color. A personalized coloring book made from your own photos keeps them there longer than a generic page, and the helper hand gets a workout the whole time.
Start lower than the problem. That is usually where the fix lives.
Frequently Asked Questions
At what age should a child be able to do jumping jacks?
Most children manage a recognizable jumping jack somewhere around ages 5 to 6, though coordinating arms and legs smoothly can take longer. Bilateral coordination is generally well established by about age 4 for simpler symmetrical movements, with more complex combinations arriving later. If your five-year-old cannot get arms and legs working together at all, try breaking the movement into separate parts before raising it with your pediatrician.
What causes poor bilateral coordination?
Often it is simply limited practice, especially in kids who spend more time on sedentary play. It can also relate to core weakness, since a stable trunk is what coordinated arm movement depends on, or to motor planning and sensory processing differences. Occupational therapists evaluating a child typically look at core strength, motor planning, and visual-motor integration together rather than the hands alone.
Is bilateral coordination the same as crossing the midline?
They are closely related but not identical. Bilateral coordination is using both sides of the body together. Crossing the midline is reaching a limb across the center of the body to the opposite side. Crossing the midline supports the development of bilateral coordination and both depend on the two brain hemispheres communicating, so therapists usually address them together.
Does hand dominance need to be established first?
For the third stage, largely yes. A stabilizing hand needs a leading hand to support, so consistent hand preference tends to arrive before stage 3 tasks get easy. Hand preference usually settles between ages 4 and 6, and midline crossing helps that process along. A preschooler still switching hands is not a concern on its own, but persistent switching past kindergarten is worth mentioning to your pediatrician.
How is bilateral coordination different from fine motor skills?
Fine motor skill is what one hand can do: grip, pinch, and finger control. Bilateral coordination is the two sides working together, whether that is both hands doing the same thing or one leading while the other stabilizes. A child can have strong fingers and still struggle to cut, because cutting is a two-handed job. Our guide to fine motor skills activities for preschoolers covers the single-hand side in more depth.
