Fourth Grade Math

Fourth Grade Math

Number Sense

A game like Connect Four that asks the players to estimate the answer within a given time span. Parameters: time limit, error tolerance, difficulty level. Includes focus on addition, multiplication, or percentage.

Estimate the number of objects, length of a curved line or area of a shape. Choose the level (easy or hard ) and how close your answer needs to be!

This is a two player game that integrates multiplication fact practice and great strategic thinking!

Investigate patterns made by multiples of numbers in a 100 square. If that's too easy, try the n-square investigation

Place Value

Identify place value of digits and round numbers up to thousands.

How many tries do you need to guess a number between 1 and 999?

Fact Practice

Practice addition and multiplication facts.

Fact practice for one or two players.

Work through a set of flash cards.

Multi-step fact practice.

Geometry

In this activity you figure out a three-dimensional structure based on two-dimensional silhouettes, or shadows. If you have worked with front and side views, you will find this similar (except that you will not see hidden lines). Here are the front (on the left) and side (on the right) silhouettes of the same structure: Your task is to come up with plot plans that could match the silhouettes given. Sometimes there will be more than one plot plan that can give the same silhouettes.

This interactive site provides great visuals of 2-D and 3-D shapes, list the properties of 2-D shapes and allows you to move the 3-D shapes around.

Imagine that you have taken a peculiar train trip around a circular track. Inside the circle were some geometrical shapes. You took four snapshots of what you saw while looking into the center of the circle. But now you have dropped the pictures and they're all mixed up. Your task is to put them back in order.

Can you judge an object by its shadow? In this activity you will be asked to determine if a shadow can be produced by a particular shape.

Dynamic geometry software provides an environment in which students can explore geometric relationships and make and test conjectures. In this example, properties of rectangles and parallelograms are examined. The emphasis is on identifying what distinguishes a rectangle from a more general parallelogram.

Choose the shapes that match the properties listed. Great practice for Guess My Rule!

Tangram Puzzles allow students to choose a picture and use all seven pieces to fill in the outline. In Tangram Challenges, students can use tangram pieces to form given polygons.

Taxicab geometry is a special kind of geometry that works on city streets. With it you finally have a chance of finding treasure hidden in the city of Arborville. Here's what you do: Pick an intersection and ask the computer how far it is to the treasure. The computer tells you the distance using taxicab geometry.

Use the clues (definitions of angles) to find the words in the wordsearch.

Match each geometric term with its correct definition.

Use this amazing isometric grid paper to draw your cube toys.

Learning Angles Through Sports!

Have a go at snooker to learn how to use a protractor then move on to the football pitch to learn about right angles! Be prepared, this is a British site so snooker is like pool and football is what we call soccer! On the tennis court you'll learn about acute angles and you'll explore obtuse angles in a game called cricket! Keep your eye on the ball!

Measurement

This site is an introduction to measurement for upper elementary students. Come learn about length, mass, temperature, time, and volume. First travel to each topic link, and then test yourself with the fun exercises that follow.

This is a GREAT resource! Examples of everyday item equivalences for metric units of length, mass, volume, and temperature.

Convert between US measures of length.

More Challenging Length Conversions

Try these conversions if you are looking for more of a challenge! You might want to get a pencil and a piece of paper!

Match the cards with equivalent measures.

Concentration with Equivalent Measures

Flip over the cards and try to match the equivalent measures. 3 Feet = 1 yard, 3 Teaspoons = 1 Tablespoon.

Challenges!

See how we use math in sports.

Tesselations

Time

Convert Minutes to Hours & Minutes

You are given a total number of minutes and it is your job to convert them to hours and minutes.

Fractions

A fun way to learn about fractions.

Chose the fraction that is not equivalent to the others. Try all four levels of difficulty!

Operations with fractions.

Your goal is to reach the top by deciding whether the next fraction card will be higher or lower than the last one displayed. Place a stake to determine how many points you will win or lose!

Change the total number of pieces in the whole to help you discover equivalent fractions.