The Math Map | Summer Book Club 2026 | Week 8: Multiplying with Place Value & the Distributive Law

June 3

0:00 Intro & welcome
1:02 Fundamentals: factors, product & scalar x vector
2:35 Multiplication as repeated addition
4:14 What to memorize: combinations, not permutations
7:15 Building a multiplication chart
10:38 Skip counting as a bridge
12:16 Multiplying integers: preserve vs. reverse
15:17 Any number as a starting point + hops
20:35 The "pick a number" game
28:02 Lines in 2D and 3D
29:35 Worked examples & the card practice idea
34:48 Place value & the hidden addition
36:19 The distributive law
39:23 Mental math tricks
41:02 Beyond the digits: multi-digit multiplication
45:02 Worked example: 23 cm x 50 cm
52:35 Place-value expansion of 23 x 50
59:02 Multiplying units: area & volume
62:00 Next week preview
63:43 ACMS conference & a testimony worth watching
65:23 Q&A: what is this series about?
70:50 Wrap-up

Видео The Math Map | Summer Book Club 2026 | Week 8: Multiplying with Place Value & the Distributive Law канала Leigh Bortins