Pupils explore and analyze the relationship of buoyancy and displacement needed to make an object float. They examine various boat designs, then design and build clay and aluminum boats that hold a cargo of marbles.

Students work collaboratively to design and construct a roof out of Legos for a house that was built in a previous lesson. The roof must be structurally sound and pass certain criteria determined by the teacher.

Pupils explore the causes of dyslexia. They view CT sans and MRIs to view the brain and how it responds. Students read reports about dyslexia. They discuss the nature of dyslexia, its cause, how to diagnose it, and its permanency.

Young scholars photograph mystery images. In this observation skills lesson, students gather everyday objects and place them under a digital microscope. They magnify the image and take a photograph of it. The image is then displayed on...

Students examine primary sources that include pictographs from Puebla, Mexico. In this Huexotzinco Codex lesson, students perform historical analysis as they investigate the codex as they make inferences and draw conclusions about taxes...

Students research the movie production occupation and careers in the industry. In this movie careers and effects lesson, students watch a video about special effects used in movies and scale. Students draw a building to a specific scale...

Students observe bird nests. In this observation level, students explore bird nests using their five senses. Students compare and contrast bird nests while hypothesizing about the need birds have to construct the nest.

Students are introduced to the function and design of the following Lego pieces: beams, bricks, plates, axles, tires, hubs and bushings. They then work with a partner to build something using only these pieces.

Students study the sense of touch and various degrees of heat. They design a model that displays how the human hand reacts to heat using a touch sensor.

Fourth graders examine the geological development of the state of Indiana. Using the internet, they interact with the United States Geological Survey. They identify earthquake zones and energy resources in the state. They work...

Students are introduced to the geological development of the state of Indiana. Using the internet, they visit the U.S. Geological Survey and locate the earthquake zones in the state. In groups, they locate and identify the energy...

Students draw like an architect. In this interdisciplinary lesson, students research and draw several examples of different forms of architecture through societies, cultures and times, then present them to the class.

Test your mental math skills in arithmetic. How many questions can you answer in one minute? Good luck!

Designed to inform teachers, this booklet addresses questions they may have about how to teach Mental Math.

[Free Registration/Login may be required to access all resource tools.] Find sums and differences of decimals using mental math.

[Free Registration/Login may be required to access all resource tools.] Use mental math to divide by decimal powers of ten and find a quotient.

[Free Registration/Login may be required to access all resource tools.] Use mental math to divide by whole number powers of ten.

[Free Registration/Login may be required to access all resource tools.] Use mental math to multiply by decimal powers of ten.

Mental Maths Train is a multiple-choice math game that focuses on the essential vocabulary of addition, subtraction, multiplication, and division.

[Free Registration/Login may be required to access all resource tools.] Solve word problems using the mental math.

[Free Registration/Login may be required to access all resource tools.] Solve single variable addition and subtraction equations by using mental math

[Free Registration/Login may be required to access all resource tools.] Solve single variable multiplication and division equations by using mental math

[Free Registration/Login may be required to access all resource tools.] Use mental math to solve and check single-variable equations

Practice your mental math skills with this site, where practice problems in addition, subtraction, multiplication, and division abound. Introductory, intermediate, and advanced levels are available. Just type in your answer and you'll...