Math Fluency Fun for Coaches! by MV Digilearn

mv_digilearn — 2024-04-05 15:40:13 UTC

2024-04-05 17:56:51 UTC

I used factors of 36 to make friendlier numbers to multiply. 25 is easy to multiply by 4. Then I multiplied that product by 9. 😀

2024-04-05 20:14:09 UTC

My students who struggle with the steps of the standard algorithm really like and are successful with the "box method"

2024-04-09 12:26:53 UTC

Doubling and Halving

alyssa_davis5 — 2024-04-09 14:36:03 UTC

____ = 25 x 36

____ = 50 x 18

900= 100 x 9

The beauty of the Multiplicative Inverse to generate equivalent expressions!

25 x 36=

lindsaytschirhart — 2024-04-11 15:39:47 UTC

25x36=

(5x5) x (6x6)=

(5x6) x (5x6)=

30x 30= 900

Flexible Factoring

Students decompose each factor multiplicatively into smaller factors. Using the associative property, students reassociate the factors to make an equivalent, easier problem to solve.

mv_digilearn — 2024-04-12 17:29:23 UTC

Difference of Squares

alyssa_davis5 — 2024-04-16 15:27:10 UTC

24 x 36 = (30-6)(30+6)

= 900 - 36

= 864

2024-04-16 15:43:35 UTC

Area model is my go to strategy.

2024-04-16 19:14:22 UTC

Doubling/Halving

lindsaytschirhart — 2024-04-17 19:48:28 UTC

mv_digilearn — 2024-04-23 19:45:59 UTC

2024-04-24 13:00:57 UTC

I rounded the addends to make the mental addition easier. Then adjusted for the rounding by subtracting the difference between the rounded numbers from my sum.

mv_digilearn — 2024-05-03 18:56:35 UTC

2024-05-13 21:52:43 UTC

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2024-05-14 13:14:28 UTC