Please Excuse My Dear Aunt Sally As She Makes the Number 24
The students get 4 numbers presented on a number card. With these numbers and an interactive calculator, students try to compute the number 24. Students use order of operations to solve a numerical expression that equal 24.
Virtual Balance Beam: Linear Equations
The National Library of Virtual Manipulatives has created a virtual manipulative that allows students to solve linear equations through the use of a balance beam. Unit blocks represent numbers and X boxes represent the unknown X. The manipulatives are placed on the pans of a balance beam. Once the beam balances to represent the given linear equation, the student can choose to perform any operation, as long as the student does the same thing to both sides, thus keeping the beam balanced.