Scientific notation is can be very confusing to students. They confuse the positive and negative exponents and when to use them. I have found that by teaching the students to find the old decimal point, label where the new one should go, and count from new to old, it forces them to move in the positive or negative direction, making the sign of the exponent much easier for them to figure out!
This powerpoint is a lesson dealing with finding perfect squares and perfect cubes, define what square and cube mean, and begin discussing how to simplify square roots.
This is a powerpoint with open ended questions used to review how to create extended constructed response. The review covers all 4 strands of middle school math.
This lesson takes everything that we have done before; square roots, changing rational numbers, absolute value etc and putting them into expressions where we need to use order of operations to solve.