Curated OER
Add and Subtract Within 20
Break down addition and subtraction into short sentences using this brief worksheet. Each question prompts scholars to make a number by doing three math operations. For the first, they make 10 by adding three, adding five, and...
Curated OER
Parts of a Set
Calling all fraction novices! Use sets of objects to introduce scholars to fractions before they even have learned about numerators and denominators (but this is a great way to introduce these terms!). The first section has four...
Curated OER
Graphs
For beginners to picture graphs this is the perfect resource. They analyze two bar graphs that break down data visually so scholars can actually count the number in each column. For the first, they fill in how many of each type of pet is...
Curated OER
Finding Common Denominators to Subtract
Subtracting fractions with unlike denominators can be overwhelming, but in this task, 5th graders work systematically to break down the procedure through three questions. The first two questions ask for pictures to be drawn along with...
Curated OER
Adding With Whole Tens
For this addition worksheet, learners use pictures of bars and numeric problems to add whole tens and complete addition problems. A website reference is given for additional activities.
CK-12 Foundation
Greatest Common Factor Using Factor Trees
Beginning with a description that sets the stage, learners are asked to break down the numbers 42 and 63 to find the greatest common denominator using factor trees. As they work through the factoring process, young mathematicians are...
Illustrative Mathematics
Factors and Common Factors
This is an exercise in finding the greatest common factor of two whole numbers. Use in direct instruction or as part of your guided practice. Make up additional problems for home work. It also can be used as a mini-assessment or test...
Curated OER
Skill Explored: Count Forward from a Given Number Step-by-Step Lesson
It's warm-up time for your counters! Project this short worksheet, covering up the explanation as learners try to solve the number sequence. They are given the beginning and ending numbers (four and 10), but have to complete the middle....
Bowland
You Reckon?
Sometimes simple is just better. A set of activities teaches young mathematicians about using plausible estimation to solve problems. They break problems down to simpler problems, use rounding and estimation strategies, and consider...
Curated OER
Expanded and Standard Form
Tens and ones, that's what this worksheet is all about. Learners break down 6 numbers into their 10s and units, transpose 5 numbers from expanded to standard form, and write 5 numbers in word form. This would be a good worksheet to...
Curated OER
Column Addition Rules
Expanded column addition is when a child breaks down each place value into its component numbers then adds all the sums together. Present the rules of expanded addition to help learners understand what it actually means to add multiple...
West Contra Costa Unified School District
Adding Numbers
Support math instruction at home with a helpful reference sheet designed for parents. Three pages cover the subject of addition with written details and labeled pictures.
BW Walch
Solving Linear Inequalities in Two Variables
Although graphing a linear inequality on the plane is but a few steps added onto the graphing of a linear equation, for many learners the logical leap is quite intimidating. This approachable PowerPoint presentation breaks graphing...
Curated OER
Multiplying Large Numbers Using the Grid Method
In this math worksheet, students multiply large numbers using the grid method. Students split the number into hundreds, tens and units. Students draw a grid, multiply, and add. Example: 324x7 = 300x7 plus 20x7 plus 4x7. Students solve 26...
Curated OER
Multiplying By Whole Tens
In this multiplying worksheet, students count by tens, write the rule for multiplying by ten, and then multiply numbers by ten. Examples and explanations are given prior to the exercise. This two-page worksheet contains approximately 30...
Curriculum Corner
Guest Teacher Plans (Grade 2)
Be prepared the next time you're in need of a substitute with a daily plan equipped with an assortment of activities covering subjects math, reading, word work, writing, and science.
Curriculum Corner
Guest Teacher Plans Grade 5
Math, reading, writing, and word work; it's all here in a daily lesson plan created to support a substitute teacher in a fifth grade class.
Curated OER
March of the Dividing Ant
Students inspect divisibility rules. In this divisibility rules lesson plan, students study the relationship between factorization and the divisibility rules for 2, 3, 5, 6, 9, and 10. Students read One Hundred Hungry Ants and A...
Curated OER
Unit 2 Section 2: Prime Factors
In this prime factors worksheet, learners make six factor trees. They tell the prime factorization for eight numbers. Students answer three questions regarding the prime factorization of numbers.
Curated OER
Odd and Even
First graders identify odd and even numbers. In this odd and even numbers instructional activity, 1st graders participate in a partner activity to determine odd and even. Students break into groups and lock arms together and are asked if...
101 Questions
Safe Cracking
How long would it take to break into a safe by testing every possible combination of codes? Pupils view a video clip of this happening and must determine the total amount of time before success. They measure how long each step takes, add...
Curated OER
Subtraction with Borrowing
In this math learning exercise, students go through the process of learning how to borrow in subtraction to the hundreds place. Students are instructed to break down the numbers and "draw squares, sticks and dots" before crossing out...
Illustrative Mathematics
Find the Change
This exercise is an opportunity for algebra learners to understand the connection between the slope of a line and points found on the line. Use similar triangles to explain why slope m is the same between any two points. Discuss with the...
Howard Hughes Medical Institute
Measuring Biodiversity in Gorongosa
Take your biology class' understanding of biodiversity to a whole new level! Ecology scholars use data to calculate three different diversity indices based on the organisms in the Gorongosa National Park. The four-part activity uses an...