# Math Lessons

### More Lessons

• #### Intersecting Angles and Streets

Students explore the properties of angles, search city maps for intersecting streets, and then design their own street intersection.

• #### Undoing Multiplication With Division

Students explore the relationship between multiplication and its inverse, division. They will attempt to "undo" multiplication by dividing once, twice, or even three times.

• #### Exponent Patterns

Students uncover patterns with exponents and then make predictions about the powers of 0 and 1.

• #### Calculators, Patterns, and Multiplying By Decimals

Using calculators, students will gain familiarity with the patterns that occur when multiplying by decimals. They'll note these patterns and use them to make predictions before checking with their calculator.

• #### Rounding Numbers (But Not To 10)

In this video, students will investigate how to round to numbers other than multiples of ten. What if we want to round to the nearest 9, 12, 52, or 75?

• #### Factoring and Calendars

In this video, students will factor 365 in an attempt to create a better system of months and weeks.

• #### Place Value (Beyond Base 10)

To better understand place value, we venture beyond the decimal number system and explore a Base 9 system. Students will be exposed to ancient Babylon's Base 60 system and computers' Binary and Hexadecimal before creating their own number system!

• #### Doubling Dollars

Students will double a single dollar once per day and discover how long it takes to reach \$1 million. Along the way, they'll move from repeated multiplication to using exponents.