This course features a video review and an assessment practice of subtracting by crossing out with pictures for word problems. It is aimed at first grade math students.
This task provides a familiar context allowing students to visualize multiplication of a fraction by a whole number. This task could form part of a very rich activity which includes studying soda can labels.
This short video and interactive assessment activity is designed to give fourth graders an overview of addition (sums to 1,000).
This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 1,000).
This short video and interactive assessment activity is designed to teach third graders an overview of addition (sums to 1,000).
The purpose of this task is to address the concept of opportunity cost through a real world context involving money.
Playing the role of engineers in collaborations with the marketing and production teams in a chocolate factory, students design a container for a jumbo chocolate bar. The projects constraints mean the container has to be a regular trapezoidal prism. The design has to optimize the material used to construct the container; that is, students have to find the dimensions of the container with the maximum volume possible. After students come up with their design, teams present a final version of the product that includes creative branding and presentation. The problem-solving portion of this project requires students to find a mathematical process to express the multiple variables in the prism’s volume formula as a single variable cubic polynomial function. Students then use technology to determine the value for which this function has a maximum and, with this value, find the prism’s optimal dimensions.
The goal of this task is to help students understand the commutative property of addition by examining the addition facts for single digit numbers. This is important as it gives students a chance, at a young age, to do more than memorize these arithmetic facts which they will use throughout their education.
In this lesson students will learn about tallying and collecting data.
This short video and interactive assessment activity is designed to teach third graders an overview of before and after (time).
This short video and interactive assessment activity is designed to teach second graders an overview of before and after (time).
This short video and interactive assessment activity is designed to teach fourth graders about telling the time - before and after.
These word problems about money require students to think in base 10.
Use a code to encode and decode secret messages. Colorado Americorp agents in Araphahoe, Denver, Garfield, Larimer, and Weld Counties. Work supported by the Corporation for National and Community Service under Americorps grant number 18AFHCO0010008. Opinions or points of view expressed in this lesson are those of the authors and do not necessarily represent the official position of or a position that is endorsed by the Corporation or the Americorps program. This resource is also available in Spanish in the linked file.
The purpose of this task is to help students understand composing and decomposing ones, tens, and hundreds. This task is meant to be used in an instructional setting and would only be appropriate to use if students actually have base-ten blocks on hand.
This short video and interactive assessment activity is designed to give fourth graders an overview of time conversion between words and numbers.
This short video and interactive assessment activity is designed to teach third graders an overview of time patterns.
This short video and interactive assessment activity is designed to teach second graders an overview of time patterns.
This short video and interactive assessment activity is designed to give fourth graders an overview of telling time to quarter and hour.
This series of word problems requires students to determine which problems can be solved by multiplying 1/8_2/5.