This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials For each pair: * 2 ten-sided dice with the numbers 0 to 9 or two spinners with the numbers 0 to 9 * Base-10 blocks, linking cubes, or bundled...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials The Very Hungry Caterpillar by Eric Carle The students work individually or in pairs. Each student or pair needs: Three ten-frames for each s...

This parent guide supports parents in helping their child at home with the 1st Grade Math content.

This resource accompanies our Rethink 1st Grade Math Number & Operations in Base Ten unit. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning. 

This unit was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 1st Grade Math for Number & Operations in Base Ten.

In this Khan Academy interactive, students will compose and decompose numbers as collection of tens and some ones.

Students will be running their own restaurant.  Students will show what they know about adding three 2 digit numbers by dragging coins and adding money totals.

Base Ten BINGO is a fun educational learning activity for children to practice counting by one's, ten's, hundred's and thousand's. First children select the desired place value and grid size. Next, add up the blocks on the right and click the corresponding number on the left. Learn place value while playing BINGO!

In this activity, students will solve a base 10 math problem and explain their thinking using SeeSaw.

Students work with a partner to build a train using snap cubes of the same color and determine the number of tens and ones they have. Students draw the train to show how they counted the cubes.

In this lesson students explore counting through the concept of place value in our base-10 numeration system. They practice grouping in groups of ten and groups of ten tens.

Students will listen to The King’s Commissioners by Aileen Friedman.  They will answer questions about the story and discuss. Then each student will create a drawing to show which counting method is most valuable or efficient for a real-world counting situation.  Students will take turns presenting their opinions. This lesson was developed by NCDPI as part of the Academically and/or Intellectually Gifted Instructional Resources Project. This lesson plan has been vetted at the state level for standards alignment, AIG focus, and content accuracy.

Students work together using their knowledge of grouping tens to create links of tens, combine and compare their links, then realize that if they combine all of their links this could create enough “snow” to build a snowman in the classroom!

This lesson reviews the concepts of counting beyond 100 by counting by 10's with tally marks. The shoe collection associated with it began in lesson 2. This lesson also allots time for students to count all the shoes around the school with the teacher's help and to take action in the last step of the shoe collection to help others in the world by bagging up the shoes for transport. The action taken by the students produced a large number of shoes to donate. The final part of this lesson and unit is to complete a reflection assessment.This lesson was developed by James Agner as part of their completion of the North Carolina Global Educator Digital Badge program. This lesson plan has been vetted at the local and state level for standards alignment, Global Education focus, and content accuracy.

In this lesson, students identify 1 ten as a unit by renaming representations of 10.

In this lesson, students solve addition and subtraction problems decomposing and composing teen numbers as 1 ten and some ones.

In this lesson, students will compare the efficiency of counting by ones and counting by tens.

In this lesson, students compare two quantities, and identify the greater or lesser of the two given numerals.