Curated OER
Fractions: Multiplication and Division
Seventh graders multiply and divide fractions. Using the teepee method, 7th graders model fractions as they find solutions to problems. They recognize that "of" means to multiply and explore real life situations when multiplying or...
Curated OER
Math 121 - Mixture Problems
In this mixture problem worksheet, learners read story problems, identify necessary information, and solve mixture problems using the mixture formula. This one-page worksheet contains ten problems. Answers are provided at the bottom of...
Curated OER
ESOL: Time and Money
Learners study the parts of an analog and digital clock. They create paper clocks to identify telling time to the hour, half-hour, and quarter past and quarter after. They practice tellng time in pairs.
Curated OER
Determining the Age of Fossils
High schoolers examine the concept of radioactive dating. In this radioactive dating lesson, students investigate how to determine the ages of fossils and rocks as they learn about half-life radioactive decay.
Curated OER
Numerator and Denominator
Students identify the numerator and denominator of a fraction.
Curated OER
Math: Divide and Conquer - Equivalent Fractions
Students engage in hands-on activities and observe videos to develop fraction skills. In one activity, they create "paper pizzas" complete with original toppings. By swapping pieces, students display whole and unique-looking pizzas.
Curated OER
Reproductive Lottery
Students explain that fishes that reproduce externally have to release great numbers of eggs and milt (sperm) in order to ensure fertilization.
Curated OER
Punch Mix-up
Fifth graders discuss the relationship between equivalent fractions, ratios, and proportions. For this fraction lesson, 5th graders answer questions about a punch mixture in order to find the ratio of ingredients.
Curated OER
Multiplying Fractions
Fourth graders reflect on what fractions represent and visualize the fraction multiplication process. They reinforce what they have learned through practicing multiplication of fractions.
Curated OER
More Pizzas and Things
Students are introduced to the problem by playing a guessing game of "I am a number, which is half of 6 and 6, what am I?" They explain their answers and see if anyone else had an alternate solution checking for reasonableness.
Curated OER
Measuring Length
In this measuring length learning exercise, students learn to read a ruler with fraction measurements. Students then measure the lines to the nearest fourth of an inch and also measure them using a centimeter ruler.
Curated OER
Water Cycle Boogie
Students explore the water cycle. They learn the "Water Cycle Boogie." Students create hats to represent the different parts of the cycle and learn hand motions to go with the words of the song. Students practice singing the song and the...
Curated OER
The Cleverest Thief
Second graders explore a folktale from India. In this folktale lesson, 2nd graders read the book The Cleverest Thief and discuss how the monks felt in the story. Students complete a cloze activity sheet. There are several extensions...
Curated OER
Biomedical Engineering: Wacky Shoes
Students create 'wacky' shoes as a part of a biomedical engineering activity. In this bioengineering lesson, students investigate old shoes cut in half and discuss the purpose of each shoe layer. Students use a shoe template to design...
Curated OER
Law of Sines and Law of Cosines
In this sine and cosine worksheet, students use the law of sines and law of cosines to find the required part of a triangle. Examples and explanations are provided. This three-page worksheet contains 24 problems. Answers are listed at...
Curated OER
Adding and Subtracting with Tenths
In this adding with tenths worksheet, students add and subtract numbers whose decimals go to the tenths place. Students complete 10 problems total.
Curated OER
Decimal Word Problems
In this decimals activity, students solve 10 different word problems that include using decimals. First, they determine the amount of change received from a cashier given a specific amount. Then, students write a decimal representing the...
Curated OER
Life Beyond the Fifty Yard Line -- An ecological look at our backyard
Students, in groups, stake out and rope off their study area, do population counts and density studies. They construct a map of the whole area, collect plants and insects, and mount and identify the organisms using keys.
Curated OER
What Time Is It?
In this telling time in words activity, students examine 4 clocks and match them to words that describe them best. The choices are: o'clock, half past, quarter past and "a clock." Note: The last choice is confusing; there should possibly...
Illustrative Mathematics
Voting for Two, Variation 3
After calculating election votes, your learners must determine how many votes the winner, John, got above 50%. This multi-step problem encourages them to think in a deeper way about what the question is asking them to find. Use with...
Noyce Foundation
Snail Pace
Slow and steady wins the race? In the assessment task, scholars calculate the rates at which different snails travel in order to find the fastest snail. Hopefully, your class will move much more quickly in finishing the task!
Curated OER
Oral Language in Mathematics
Third graders examine fractions by descriptively writing about them. For this number sense lesson, 3rd graders read number sentences and compare fractions based on their size. Students explain fractions to a friend by writing a friendly...
Curated OER
Money Amounts With A Calculator
Second graders record money amounts with decimal notation. In this money instructional activity, 2nd graders read and construct monetary amounts using decimals. Students work with calculators and discover the rules of decimals.
Curated OER
Number and Number Relations: Lesson 2
Eighth graders recognize or compute decimal equivalents of fractions. They recognize or compute the percent equivalent of decimal fractions. They relate fraction, decimal, and percent equivalents and recognize decimal equivalents.