CK-12 Foundation
Numbers in Expanded Form: Pennies Expanded Form
Beginning with a word problem that poses the question of making groups of 10 pennies to translate into a single dime, pupils are challenged to make sense of the amount of dollars 33 cents is in expanded form.
CK-12 Foundation
Equivalent Fractions: Number Line
Arrange improper fractions on a number line to determine the equivalency to whole numbers. The number line starts at -4 and ends at 4, while users must turn the improper fraction into a proper fraction in order to place it on the number...
CK-12 Foundation
Fraction and Mixed Number Comparison: Pumpkin Pie
Compare fraction models to fractions on a number line in an interactive that uses pumpkin pies as the model. Pupils look at pumpkin pie models to determine their improper fraction value. They use their knowledge to answer five questions...
CK-12 Foundation
Pythagorean Theorem and Its Converse
To be a right triangle, or not to be — that is the question. Scholars drag line segments in an Internet application to see if they form right triangles. Once they get the results of the activity, they connect them to the converse of the...
CK-12 Foundation
Percent of a Number: Rock Climbing
What percent of the 100 ft. rock has Marta climbed? Young mathematicians find the percent of number (the rock height) by moving the climber up and down the rock.
Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
Curated OER
Five Little Monkeys
Students listen to story Five Little Monkeys Jumping On The Bed, and act out subtraction situations.
Curated OER
Race the Track! Jump the Gap
Students record data of using a track system with variables and how those variables affect a ball used in the track. In this track lesson plan, students design their own track in groups, test the ball's rates of speed, and record their...
Curated OER
Fractions and Fact Families: Jump Kangaroo Jump!
Second graders practice with fractions and fact families. In this fractions and fact families lesson, 2nd graders participate in a series of activities to assist them with understanding fractions. Activities include graphing,...
Curated OER
Powers of Ten
Pupils make paper ten strips using graph paper. They add them together to depict the powers of ten.
Curated OER
Fun With Addition
Students name numbers to 30, use the number keys on the computer, use manipulatives to add, and add numbers in any order. For this addition lesson plan, students learn the language of sum, equals, and a plus sign.
Pennsylvania Department of Education
Modeling Spatial Relationships
Students model spatial relationships using math manipulatives. In this spatial relationships lesson, students work with a partner, and either connecting links or linking cubes that are three different colors. They explain to each other...
Curated OER
Place Value
Students use various manipulatives and play a game to practice place value and to help them visually see how many "ten" is.
Curated OER
Caution: Slippery When Wet....Not!
Pupils and manipulate data from Internet sites to design a downhill ski course that meets the International Federation of Skiing's requirements for a safe and fair competition.
Curated OER
Dynamite Data
Second graders rotate through a variety of stations designed to offer practice in manipulating data. They sort, tally and count items and then create bar graphs, tables, and pie graphs to record their findings.
Curated OER
Be a Weather Reporter!
Students make a weather turtle puppet and use it to respond to weather-related questions. They manipulate the turtle to show basic weather vocabulary such as: sunny, windy, rainy, snowy, etc.
Curated OER
Tortoise and Hare Races
Students listen to the fable, The Tortoise and the Hare, and participate in various map skill activities. They manipulate magnetic tortoises and hares on metal cookie sheets to practice direction, and construct racing tortoises out of...
Curated OER
Monitoring Energy Expenditure
Young scholars use heart rate monitors and complete a swimming and running test. These tests allow students to obtain personal data, to manipulate the data through calculations of various parameters, and to graphically represent the data.
Curated OER
Subtraction
Second graders regroup two-digit numbers and solve advanced subtraction problems with regrouping; students use straw and cup manipulatives to demonstrate how to borrow from the tens place in order to solve the problem.
Curated OER
Multiplication With Two Digits
Third graders multiply one and two digit problems, identify place value, and maneuver manipulatives to solve problems.
Curated OER
Counting to One Hundred
Students practice their oral counting skills using a hundreds chart and pennies as manipulatives.
Curated OER
Fraction and Decimal Garden
Third graders write fractions and decimals using unifix cube models and grid paper. They draw a garden using grid paper and label each section with the correct fraction and decimal to the tenths. This is a clever way to use manipulatives...
Curated OER
Goldfish Subtraction
Pupils manipulate Goldfish crackers to explore subtraction and number sentences.
Curated OER
The Eyes Have It ... Or Do They?
Pupils explore facial expressions for the hidden meanings being communicated. Truth can be hidden or at least disguised by a particular expression. The reality of control and the manipulation of truth is discussed in this instructional...
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