Number+Sense+(Grade+7)


 * **Number** || **Topic** || **Time** || **Comments** || **Approved by** ||
 * 1 || Decimals - Multiplying || (2:12) || No context given, but a good example problem explained in detail || Sean ||
 * 2 || Decimals - Dividing || (4:48) || Three examples of increasing difficulty || Sean ||
 * 3 || Exponents || (3:03) || The video is a great introduction to exponents in grade 7. It is an appropriate length and shows the relationship of exponents and multiplication. The video was obtained from Khan Academy. || Christine ||
 * 4 || Factors & Multiples || (1:34) || The clip is well organized and the definitions are written down and explained; however, further elaboration would have been beneficial. The video is 2:56 minutes long; however, factors and multiples are explained until 1:34. || Christine ||
 * 5 || Fractions - Adding (same denominator) || (3:18) || This video is very well organized. Shows how to add a fraction and also how to simplify the answer. Additionally, it also shows the addition and the simplified answer with the use of an illustration. || Nabgha ||
 * 6 || Fractions - Adding (diff denominator) || (3:25) || This video contains two examples. One is general adding fractions using lowest common denominator and the other uses prime factorization. The explanations are fairly clear and easy to follow along. || Nabgha ||
 * 7 || Fractions - Subtract (same denominator) || (2:26) || the example is a bit difficult as a first example, but otherwise it is clear and he includes a visual || Caroline ||
 * 8 || Fractions - Subtract (diff denominator) || (7:05) || is quite long but it is thorough and shows two different methods to solve the same problem || Caroline ||
 * 9 || Integers - Define || (1:40) || 0:00 to 1:40 - The video is a good introduction to the definition of integers. It uses excellent examples to explain how negative numbers are relevant to mathematics and real life. || Bryan ||
 * 10 || Integers - Compare & Order || (1:40) || 1:40 to 3:20 - This is a continuation of the video above, but shows excellent visual demonstrations of the comparison of integers, with proper use of mathematical symbols. || Bryan ||
 * 11 || Integers - Add || (5:33) || This video contains one example of adding integers with different signs. He uses the number line to visually explain how to solve the question. || Joe Anne ||
 * 12 || Integers - Subtract || (4:07) || This video includes five different kinds of examples of subtracting integers. He uses the number line to visually explain how to solve some of the questions. || Joe Anne ||
 * 13 || Ratios || (7:27) || Some mystery steps, but great explanation of concept. || Adele ||
 * 14 || Squares || (3:32) || Short explanation, lots of examples || Adele ||
 * 15 || Square Root || (1:21) || Very clear and concise, but only one example given. || Adele ||