Curated OER
Fractions: Adding Same Denominator
In this math instructional activity, students look for the answers to the addition with fractions of the same denominator. There is a button at the top of the page for the answers.
Curated OER
Range, Mean, Median, Mode
Students research the impact of craters. In this range, mean, median and mode lesson, students complete an experiment with a marble to simulate the effects of a crater. Students collect and analyze data finding the range, mean, median...
Curated OER
Fraction King Lesson Plan
Students combine imagination, block manipulation, and computer applets to investigate fractions.
Curated OER
Revamped Recipe
Fifth graders engage in a tasty lesson which assist them with proportional measurements. They use a given recipe written for 12 servings, and use a chart to determine the ingredient amounts for 30 servings (or number of students in class).
Curated OER
Calculate the Answer
Students solve basic multiplication or addition facts using a calculator and product cards. They draw a card, read the sum or product, and press single digits on the calculator to display the number on the card.
Curated OER
Zeros and Blackbirds
Fifth graders convert kilometers to miles and calculate the range that historical aircraft can travel. They choose destinations by distance that can be traveled without refueling.
Curated OER
students rotate through four workstations that reinforce the concept of symmetry
Second graders, in pairs, use arrays to explore the relationship between multiplication and division.
Curated OER
Cherries Are Positive, Lemons Are Negative- Part 2
Third graders, in groups, subtract integers by following Cherries are Positive, Lemons are Negative. They discover the rules for subtracting integers by using cherry heads and lemon heads.
Curated OER
Million Dollar Gift
Third graders create a box big enough to hold a million dollars. This is a project fun to do near the winter holidays with inexpensive gifts included in the boxes. This hands-on lesson very effectively demonstrates the concept of volume.
Curated OER
Comparing Ratios
In this comparing ratios worksheet, students solve and complete 3 different problems using the screens shown. First, they write a ratio that compares the shaded part to unshaded part illustrated. Then, students use the same grid to...
Curated OER
Recognizing Bias in Graphs
In this bias in graphs worksheet, students examine graphs and explain the data. They determine why the graph is or is not biased. This four-page worksheet contains approximately 6 problems. Explanations and examples are provided.
Curated OER
Decimals Vocabulary Matching
In this decimal vocabulary worksheet, students match a set of 27 words to their correct definitions. Answers are included on page 2; a reference web site is given for additional activities.
Curated OER
Division Word Problems Three- Version 1
In this word problems worksheet, students read the word problems and use division to solve the problems. Students solve 5 problems.
Curated OER
Multiplication Word Problems Three- Version 1
In this word problems worksheet, students read the word problems and use multiplication to solve the problems. Students solve 5 problems.
Curated OER
Exploring Altitudes in Math
Students draw and calculate altitudes. They draw the altitude of acute, right and obtuse triangles and calculate the altitude of a triangle using the Pythagorean theorem.
Curated OER
What is Your Favorite Class?
In this secondary mathematics worksheet, high schoolers solve a math riddle in which the answer will be that everyone’s favorite class is math. The one page explanation of the mathematics basis for the riddle is provided.
Curated OER
To Classify Beans And Peas
First graders record information on a bar graph and interpret the information given. They identify five different kinds of beans and three different kinds of peas. They work in groups of four and sort the beans by size or shape.
Curated OER
Get Fit for Yosemite - Nutrition
Students demonstrate an understanding of healthy eating habits and of following a fitness program. They visit Yosemite Institute.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers (No Regrouping)
Practice adding and subtracting mixed numbers.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers With Unlike Denominators 1
Practice adding and subtracting mixed numbers with different denominators. No regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Sophia Learning
Sophia: Subtracting Fractions From Mixed Numbers
This lesson examines how to subtract fractions from mixed numbers. A detailed example is included in the video lesson.
Sophia Learning
Sophia: Subtracting Mixed Numbers From Fractions
The lesson investigates how to subtract mixed numbers from fractions. A detailed example is included in the video lesson.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers Word Problems (Like Denominators)
Solve addition and subtraction word problems involving fractions and mixed numbers. Fractions and mixed numbers have common denominators.
Khan Academy
Khan Academy: Add & Subtract Mixed Numbers With Unlike Denominators (Regrouping)
Practice adding and subtracting mixed numbers with different denominators. Regrouping required.