Students use geometric reasoning to solve mystery riddles about shape hierarchies. By applying the process of elimination, they reinforce the understanding that subcategories inherit all attributes of their parent categories.

An immersive ocean-themed lesson for converting common fractions (halves, quarters, tenths) into decimals. Students dive into marine biology and treasure hunting while mastering decimal place value.

A lesson focused on mastering the US standard algorithm for subtraction up to the hundred thousands place using structured place value organizers. Students practice regrouping and maintaining alignment through visual grids.

Cumulative review and a 'Division Derby' game to celebrate progress and demonstrate mastery.

Solving multi-step real-world problems that require multiple division or multiplication steps.

Dividing decimals by decimals by using powers of 10 to create equivalent expressions with whole-number divisors.

Extending division to decimals by dividing a decimal by a whole number using place value reasoning.

Analyzing word problems to determine how to interpret remainders: rounding up, dropping, or using as a fraction.

Applying the partial quotients method to division problems with two-digit divisors.

Using estimation and rounding to find reasonable starting points when dividing by two-digit numbers.

Refining the partial quotients method to handle larger three-digit dividends with one-digit divisors efficiently.

Using place value patterns to divide by multiples of 10, 100, and 1,000, focusing on the movement of digits.

Introduction to the partial quotients method (The Big 7) as a way to decompose dividends into friendly chunks.

Students connect division to multiplication by finding missing side lengths in area models, reinforcing division as the inverse of multiplication.