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Day 12 - Seriation

Day 12 - Seriation

Alexis Ralphs Sep 18 • 7 min read

This is the one you've been waiting for, the one that gives you an excuse to buy a Grimm's rainbow.

Seriation is the idea that you can organise objects according to characteristics such as height or length.

Like a lot of the concepts we cover in this series, you can try to teach it explicitly, using Montessori knobbed cylinders, for example. But it's much better to let children figure it out for themselves.

Children under one will spend many happy hours trying to post an object into an opening. They are starting to understand bigger and smaller.

Then it's time for small, medium and large. Read Goldilocks or The Three Billy Goats Gruff. Play with nested toys like bowls, boxes or Russian dolls. Arrange toy figures in height order. Build steps or pyramids with blocks.

After that you're ready to tackle ordinal numbers, 1st, 2nd, 3rd.

And there's no need to buy any toys. A rainbow is nice, but empty yoghurt pots of various sizes will do just as well.

You're probably familiar with the expression 'baby knows best'. It applies to pre-schoolers, too. An environment rich in experiences and the freedom to experiment and make a mess is all they need.

Let them play.

Here's the rest of the series:


Day 1 - Theories of Development

Day 2 - Stages of Play

Day 3 - Play is Multisensory

Day 4 - Gender-Neutral Toys

Day 5 - The Zone of Proximal Development

Day 6 - Heuristic Play

Day 7 - Spot the Difference

Day 8 - Sorting

Day 9 - Schemas

Day 10 - Ask good questions

Day 11 - Conservation

Day 12 - Seriation

Day 13 - Observation

Day 14 - Set a good example

Day 15 - Fewer toys = more focus

Day 16 - The Hundred Languages of Children

Day 17 - Plan-do-review

Day 18 - Practical life

Day 19 - Free-flow play

Day 20 - Executive functions

Day 21 - Spaced repetition

Day 22 - Independent play

Day 23 - Project-based Learning

Day 24 - The Environment As The Third Teacher

Day 25 - Start With The Child

Day 26 - Symbolic Play

Day 27 - Learning To Write

Day 28 - Blocks: the indispensable toy

Day 29 - Outdoor Learning

Day 30 - Play

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