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 A spinner with the numbers 0, 1, 2, ... 9 A spinner with the decades 00, 10, 20, ... 90 Math journal or teacher-made worksheet Pencil Actions...

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 Set of cards from 1-100, these can be purchased or created using a black marker and index cards Setup Sort the 1-100 cards into sequential gr...

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 compare two two-digit numbers based on the value of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

In this Khan Academy interactive, students will compare two-digit numbers based on the value of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

For this assessment, students compare numbers, complete number sentences to make them true, and explain how they know a given number sentence is true.

In this interactive, students feed the fish by selecting the bar of food, which uses the less than or greater than symbol, to select the correct amount of food the fish receives. The fish grows as it continues to eat the food that was dropped. When the fish has grown up, it swims out into the ocean.

In this lesson, students use the symbols >, =, and < to compare quantities and numerals.

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

In this lesson, students use the symbols >, =, and < to compare quantities and numerals.

In this lesson, students interpret two-digit numbers as tens and ones, including cases with more than 9 ones.

In this lesson, students use the symbols >, =, and < to compare quantities and numerals to 100.

In this lesson, students decompose teen numbers as 10 ones and some ones; compare some ones to compare the teen numbers.

Sample Learning Goals
Improve understanding of place value by using different sizes of papers for ones, tens, and hundreds.
Develop mental math strategies when taking apart and putting together numbers.
Use the “make a ten” strategy when counting and doing addition.
Develop a mental model of the basic properties of numbers including commutativity, associativity, and closure.

This is the About the Cluster document written by the NC2ML group who created the instructional frameworks. This is a great resource to read while starting to plan for First Grade Cluster 2.

This document is the About the Cluster document created by the authors of the NC2ML Instructional Frameworks. Read this document prior to teaching the cluster in order to get insight into the clustering of the standards, mathematics to be taught, and important considerations.

This document is not remixable since the document has been written by creators of the NC2ML Instructional Frameworks.

This unit of 1 Number and Operation lessons explores numbers and place value to 120. The unit contains 4 activities.