3rd Grade Math - Computation & Numerical Estimation

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Add & Subtract

Subtraction Rhyme (lesson plan) - Rhyme for doing subtraction with regrouping from tens to ones from ERIC.
Crazy Computation - from Georgia Learning Connections; incorporates manipulatives to increase student understanding of regrouping.
Who Has More or Less? - "practice adding and subtracting mentally as well as attach the words 'more' and 'less' to adding and subtracting."
Addition and Subtraction Game - "group activity that provides review and drill in the format of a game for learning facts in subtraction and addition."
Four Squares - "Students cut and try to piece together 16 squares to form one larger square. Squares with matching problems and answers are pieced together."
Mental Math Cards - mental math game that is excellent practice for basic facts.

Multiply & Divide

Snake (lesson plan) - fun game for proficiency in facts using number cubes
Table Talk (lesson plan) - from ERIC developing strategies for learning multiplication facts.
Multiplication That Is Fun - from Georgia Learning Connections; investigate the concept of multiplication and then practice basic multiplication facts in a fun way in your Internet-connected computer lab.

Multiply 3-digit by 1-digit

Array for Multiplication - use arrays to learn about multiplying whole numbers by one- and two-digit numbers; from Georgia Learning Connections.
Match to Multiply - multiplying whole numbers by one- and two-digit numbers using a fun game; from Georgia Learning Connections.
Multiplication Basketball - "discuss ways multiplication is used in real life in many different occupations. Students will play multiplication basketball;" from Georgia Learning Connections.
Rolling for a Hundred - from Georgia Learning Connections; use manipulatives to find the products of two-digit by one-digit problems. Students play a game using one die to multiply digits until a designated score is reached.

Computation with Money

Change-O - from Georgia Learning Connections; work with a familiar game (BINGO) to practice counting change.
Money Machine - from Georgia Learning Connections; determine the change given in a situation.
Trading Up to $5 - from Georgia Learning Connections; learn to count money using pennies, dimes, and five dollar bills. They will practice this skill with a game called The Great Trading Game.

Estimation

Collecting Data & Graphing (lesson plan) - collect, organize, and arrange information in a pictograph, create a survey and administer it to the class, find the range, mode, median, and mean of a set of data, create a pie, bar, and line graph on a computer
Finding It Faster - from Georgia Learning Connections; use estimating and then actual computation to determine the best method for solving various problems.
Front-End Estimation - from Georgia Learning Connections; practice using front-end estimation in simple addition and subtraction examples.
M&M Math  - uses M&Ms to teach estimation; from Georgia Learning Connections.

Estimation with Money

Fun with Estimation (lesson plan) - This activity is a timed game that allows students to practice their estimation skills while shopping for groceries.
Shopping on the Web - practice working with money as they window shop at one of these online emporiums.

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