小4・小5で算数が急にできなくなる子。その原因は「計算力」じゃないかも

キャリー 幸島 守I教育応援家 教育を熱く応援する

キャリー 幸島 守I教育応援家 教育を熱く応援する

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"My child was good at math in the lower grades, but suddenly they can't understand it in 4th or 5th grade..."

Do you know any children like this?

They can easily do calculation drills.

They've memorized addition, subtraction, and multiplication tables.

However, when it comes to word problems, large numbers, division, and decimals, they suddenly stumble.

Having observed children in elementary schools for 20 years, I've noticed that one of the reasons for this is that their "number imagery" hasn't been sufficiently developed.

Being fast at calculations and understanding "numbers" are not the same thing.

"How big is 10?"

"How big is 100?"

"Ten 10s make 100."

Experiences that allow children to not only understand the size and grouping of numbers intellectually, but also see, touch, and feel them are extremely important.

Therefore, we recommend the following:

Abacus with 100 beads
Money such as 1-yen, 10-yen, and 100-yen coins
Number games using everyday objects
Addition and subtraction using pretend play and stories

These are experiences using "concrete objects."

Just because a child is in the upper grades doesn't mean they shouldn't return to concrete objects.

When they get stuck, try going back to "numbers themselves."

Before adding more and more workbooks, please try to create time at home for them to "see, touch, and move numbers."

This might be the catalyst for changing their foundation in mathematics.

Let's enjoy parenting!

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