This 6-minute video lesson explains how to multiply complex numbers.
This 2-minute video lesson explains how to subtract complex numbers.
The purpose of this task is to have students think about the meaning of multiplying a number by a fraction, and to use this understanding of fraction multiplication to make sense of the commutative property of multiplication in the case of fractions.
This short video and interactive assessment activity is designed to give fourth graders an overview of analog and digital clocks.
This short video and interactive assessment activity is designed to teach second graders about converting coins - two units.
This short video and interactive assessment activity is designed to teach second graders about turning words into numbers using a place value diagram.
This short video and interactive assessment activity is designed to teach fourth graders about identifyinging numbers based on statements involving place value.
This short video and interactive assessment activity is designed to teach third graders about translating number patterns into words.
This short video and interactive assessment activity is designed to teach second graders about converting words to numbers using place value.
This short video and interactive assessment activity is designed to teach fourth graders about turning words into numbers using place value models.
This short video and interactive assessment activity is designed to teach fifth graders about the conversion of decimals to fractions.
This short video and interactive assessment activity is designed to teach fifth graders about the conversion of mixed numbers into decimals.
This short video and interactive assessment activity is designed to teach second graders about writing prices of items.
This short video and interactive assessment activity is designed to teach second graders about converting item costs from words to numerals.
This short video and interactive assessment activity is designed to teach fourth graders about converting dollars and coins into dollars in words.
This short video and interactive assessment activity is designed to teach second graders about the fewest number of coins and bills to equal a given amount.
This short video and interactive assessment activity is designed to teach fifth graders about converting decimals into simplified mixed numbers.
This short video and interactive assessment activity is designed to teach second graders about converting dollars into cents.
This task gives students word problems with a given a set of a specified size and a specified number of subsets. The questions ask the student to find out the size of each of the subsets.
Students practice counting sequences by standing in a circle and counting one by one.