Curated OER
Divide Decimals by Decimals
In this dividing decimals learning exercise, students review and observe examples, continue patterns, and multiply the dividend and divisor in each step by ten, so that the quotients remain the same. Students solve three problems.
Curated OER
Adding, Subtraction, Multiplying, and Dividing Fractions and Mixed Numbers
In this fractions activity, students first review addition, subtraction, multiplication, and division without fractions. Next, students add and subtract fractions in fifth-three problems, followed by multiplying in forty-four problems,...
Noyce Foundation
Sewing
Sew up your unit on operations with decimals using this assessment task. Young mathematicians use given rules to determine the amount of fabric they need to sew a pair of pants. They must also fill in a partially complete bill for...
Curated OER
Averages and Percentages
For this averages and percents worksheet, learners identify and define average as all numbers together divided by the total number of items added. Then they identify and define percent as the given number out of a total possible....
Curated OER
Skittles Lab
Students use Skittles as manipulatives to practice computing decimals from fractions, computing decimals into percentages, and creating bar graphs from gathered data.
Curated OER
Horatio's Ratios
View a PBS video entitled Horatio's Drive and explore Horatio's Ratios. Collaborative learners form groups to use Mapquest to determine distances covered. They generate the mathematical averages, ratios, and rates in order to calculate...
Curated OER
Number Line Math
Second graders use a number line to practice subtraction. In this subtraction lesson, 2nd graders use a number line to count backwards. Students participate in mad math activities and solve problems.