Explore Lux

4th grade math · Unit 3: Division

Area model for division

What this lesson shows

A rectangle with one side known, filled in place value parts.

The worked example

The lesson works this one step by step: 852 ÷ 3. Then your kid tries one like it on paper.

The steps

  1. Most hundreds that fit
  2. Then tens
  3. Then ones
  4. Add the parts

Helping at home

Draw a rectangle with the number you divide by on the side. Find the most hundreds that fit, then tens, then ones, subtracting as you go. Add the parts on top.

If your kid gets stuck

Hundreds first, then tens, then ones.

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 4.NBT.B.6
    Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Matches a standard in all 50 states and DCSee each state's code

More in this unit