1.G All vs. Only some

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: First pose the question: Here are four triangles. What do all of these triangles have in common? What makes them different from the figures that are no...

Material Type: Activity/Lab

Author: Illustrative Mathematics

2D Representations of 3D Objects

This lesson unit is intended to help teachers assess how well students are able to visualize two-dimensional cross-sections of representations of three-dimensional objects. In particular, the lesson will help you identify and help students who have difficulties recognizing and drawing two-dimensional cross-sections at different points along a plane of a representation of a three-dimensional object.

Material Type: Assessment, Lesson Plan

Drawing to Scale: Designing a Garden

This lesson unit is intended to help assess how well students are able to interpret and use scale drawings to plan a garden layout. This involves using proportional reasoning and metric units.

Material Type: Assessment, Lesson Plan

10th's and Decimals

In this video segment from Cyberchase, the CyberSquad replaces a piece of track to get the Madre Bonita Express to the Mother's Day harvest.

Material Type: Lecture

Authors: U.S. Department of Education, WNET

10X Bigger! - Remix2

Students will explore multi-digit numbers and the relationship between ones, tens and hundreds; a digit in one place is 10x the digit in the place to its right. Students will use their bodies to represent digits in multi-digit numbers up to the hundredths place and compare these numbers using <, =, >. Students will use their bodies as multi-digit numbers to add and subtract.

Material Type: Activity/Lab, Teaching/Learning Strategy

Author: Laurie Wyatt

2D Rotation Using Matrices

This Demonstration illustrates the concept of rotating a 2D polygon. The rotation matrix is displayed for the current angle. The default polygon is a square that you can modify.

Material Type: Activity/Lab, Diagram/Illustration, Homework/Assignment, Interactive, Simulation, Teaching/Learning Strategy

Author: Mito Are and Valeria Antohe

Acids and Bases: Cabbage Juice Indicator

In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.

Material Type: Activity/Lab

Authors: National Science Foundation, WGBH Educational Foundation

Acids and Bases: Testing Rocket Cars

A car propelled by the reaction between lemon juice and baking soda has more in common with rockets and jet aircraft than one might think. In this video segment adapted from ZOOM, two cast members demonstrate the power of rocket-propelled vehicles and how to exploit the force produced by the carbon dioxide gas. Grades 3-8.

Material Type: Activity/Lab

Authors: National Science Foundation, WGBH Educational Foundation

Adaptations - What a Concept

Students learn about adaptations of the pink river dolphin through concept mapping, and then they compare pink river dolphins with marine dolphins.

Material Type: Lesson Plan

10 Amazing Science Tricks Using Liquid

very usefull to understand liquid

Material Type: Lesson

Becoming a Fossil

This video segment describes how the Australopithecus afarensis skeleton known as Lucy could have been fossilized. Footage courtesy of NOVA: "In Search of Human Origins."

Material Type: Activity/Lab, Diagram/Illustration

Authors: Clear Blue Sky Productions, National Science Foundation, WGBH Educational Foundation

Carve That Mountain

Students consider the Earth's major types of landforms such as mountains, rivers, plains, hills, canyons, oceans and plateaus. Student teams build three-dimensional models of landscapes, depicting several of these landforms. Once the models are built, they act as civil and transportation engineers to design and build roads through the landscapes they have created. The worksheet is provided in English and Spanish.

Material Type: Activity/Lab

Authors: Janet Yowell, Malinda Schaefer Zarske, Sara Born

1964 Alaska Earthquake

This video adapted from the Valdez Museum & Historical Archive, explores what happened during the Great Alaska Earthquake of 1964 through original footage, first-person accounts, and animations illustrating plate tectonics.

Material Type: Lecture

Authors: National Science Foundation, WGBH Educational Foundation

Timeline

Students can generate descriptive timelines and even include images in the description.

Material Type: Activity/Lab, Interactive