Today Aiden began by asking what the difference between the constant of proportion and the unit rate is. This is a past topic that he has been stuck on for a bit because he doesn't understand the difference between the two. I did a quick example showing him that 10 cows in 5 days or 10/5 would reduce down to 2 cows in 1 day or 2/1=2... so the unit rate is 2 cows per day while the constant of proportion would be 1/2 (the constant that is multiplied from one fraction to get an equivalent form of another). I told Aiden that it is not as important to know the vocabulary as it is to apply the math and that he already knows the math so he's in good shape. I encouraged us to move on and he did. Then we started by reviewing yesterday's lesson on GCF and simplifying fractions. Then we discussed the LCM (least common multiple). Aiden had a great understanding of this. I asked him questions to ensure he knew the difference between the GCF and the LCM, and he did. Then I showed him an activity with fractions mixed into the equations. The first problem had a denominator of 4 and 5 in it. I asked Aiden what the LCM is and he said 20. I showed Aiden how if we multiple both sides of the equation by 20, it will clear the fractions and turn the problem into something much simpler. We had recess during our period so we will continue with this tomorrow.