EngageNY
Triangle Congruency Proofs (part 1)
Can they put it all together? Ninth graders apply what they know about proofs and triangle congruence to complete these proofs. These proofs go beyond the basic triangle congruence proofs and use various properties, theorems, and...
EngageNY
Representing, Naming, and Evaluating Functions (Part 1)
Begin the discussion of domain and range using something familiar. Before introducing numbers, the lesson uses words to explore the idea of input and outputs and addresses the concept of a function along with domain and range.
Illustrative Mathematics
Return to Fred's Fun Factory (with 50 Cents)
The penny arcade gets the statistics treatment in this fun probability investigation. A non-standard game of chance is described and then the class is set loose to find missing probabilities, determine common outcomes, and evaluate...
Curated OER
Counting: Connecting Pictures and Numbers
As young scholars begin connecting numbers with values, help them grasp this concept with sets of objects like these. They examine five sets (up to 15 in number) and match each to a corresponding digit. Then, they draw a set of their own...
West Contra Costa Unified School District
Introduction to Conditional Probability
Here is a turnkey lesson that walks young statisticians through the development and uses of conditional probability. From dice games to surveys, Venn diagrams to frequency tables, the class learns how a given can effect the overall...
Curated OER
I Can Use a Worm to Count
Kindergarteners use worms, puppets or other props to practice counting to 100. First, they listen to a read aloud of Count Worms by Roger Hargeaves. A worm pattern is used to count to 100, with each segment of the worm representing a...
Curated OER
Counting to 5
Tiny scholars count 5 lollipops by ones, filling in the blank in a sentence with the total amount. Have them color in the pictures to develop fine motor skills for writing. Useful notes for teacher about developing 1:1 correspondence and...
Alabama Learning Exchange
Wheels All Around
Budding mathematicians explore the concept of skip counting. They practice skip counting as they use it to determine the number of wheels that come to school at 3 different times throughout the day. They also create a data graph to show...
Curated OER
Investigation--Can You Build This?
Early learners explore shapes using colored blocks. They first get some hands-on time with the blocks and then look at beginning math concepts regarding spatial relationships. They work with a partner to build a 6-8 block tower with...
Virginia Department of Education
Lines and Angles
Explore angle relationships associated with transversals. Pupils construct parallel lines with a transversal and find the measures of the angles formed. They figure out how the different angles are related before constructing...
Time for Time
Telling Time: Telling Time: Half Hours
The whole class discusses the differences between the two clocks: digital and a clock with hands. They discuss the differences between the hour hand and minute hand. Students are taught telling time to the half hour. They are introduced...
Math Drills
Scary Multiplication
Boost multiplication fluency with a set of Halloween math worksheets, each with 60 one-digit multiplication problems. Learners multiply numbers two through nine.
K-5 Math Teaching Resources
Ten Frame
Engage young mathematicians in building their number sense with this set of ten frame printables. Whether you're teaching pupils how to count, add, or subtract, these tools offer children tremendous support with developing their basic...
Houghton Mifflin Harcourt
Let’s Count!: English Language Development Lessons (Theme 5)
Counting is the theme of this compilation of ESL lessons. Through listening, speaking, and moving, your young learners take part in a variety of activities to enhance their English proficiency such as making menus and books,...
Perkins School for the Blind
One-to-One Correspondence
Here is an interesting way to build concept understanding regarding one-to-one correspondence. Learners with visual impairments will use an array of everyday objects in context to foster an understanding of what one-to-one correspondence...
CK-12 Foundation
Using Quadratic Equations to Solve Problems: Construct a Soccer Field
Build a soccer field through a little mathematical analysis. Individuals manipulate the dimensions of a soccer field as they drag points to new positions. The simulation shows the corresponding intercepts and area. As pupils explore the...
Pennsylvania Department of Education
Thinking About Numbers from 1 to 20
Help your kindergarteners discover new number-sense concepts and to compose and decompose numbers. Though the resource contains no procedural details, the assessment tool (which you can find in the "printer friendly version") has lots of...
Curated OER
Counting: 1-100
A simple worksheet with pictures of drums in a 100-chart format. Have your students count the drums, and identify where the drums are that correspond to numbers ending in zero and five. Enlarge on a copier to 11x17 sized paper so...
Math Worksheets Land
Decimals to Fractions Lesson and Practice
Young mathematicians work through the concept of converting a shaded ten-frame into a mixed number and a decimal. Learners must first identify the number of wholes. Then, they find the fraction part. After writing the mixed number,...
Curated OER
Race to the Top
Here is a game that will help your young mathematicians practice number recognition and writing numbers. Played with a spinner or dice, individual learners or a pair will play this fun number game. They will roll the die or spin the...
Kids Can Have Fun
Cut and Paste Counting Monsters
Young children will have a blast learning how to count these monster math manipulatives. Provided with a series of boxes numbered from 1 to 10, learners must place the correct number of monsters in each space to demonstrate their ability...
CK-12 Foundation
Decimals as Fractions
Converting decimals to fractions is the focus of a five-question interactive. A color-coded tool assists mathematicians in discovering solutions. Multiple-choice questions make up the majority of the problems and a discussion question...
Curated OER
The Ants Go Marching
Integrate art, math, life science, music, and fun in this beginning addition and subtraction activity. Children kinesthetically represent adding and subtracting numbers to 10; they stand up one at a time as you count forward and sit down...
Curated OER
My Elephant Counting Book (1 to 10)
In this elephant counting book worksheet, students cut out, color and assemble a mini book with the numbers 1 to 10. Each page has a number and the corresponding pictures of elephants.