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3rd grade math · Unit 1: Multiplication and division

Position is not value

What this lesson shows

Fixes a mistake

In 6, 12, 18, the 2nd term is 12. 12 is not the 12th term.

The worked example

The lesson works this one step by step: Start at 6, add 6. Then your kid tries one like it on paper.

The steps

  1. Label the places
  2. Place is where it sits
  3. The number is its value

Helping at home

Label each term with its place, 1st, 2nd, 3rd, under the number. The place says where a term sits; the number is its value. To find the 5th term, keep going until you label the 5th place.

If your kid gets stuck

Label each term with its place.

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

Standards

  • Common Core 3.OA.D.9
    Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.
Matches standards in 48 statesSee each state's code

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