Lisa provides a daily blog summarizing her math class. The class started with mental math problems but Lisa forgot her worksheet. The new unit is about scales and weights, where the goal is to determine the weight of a blue weight using smaller yellow weights of weight 1. Through setting up equations and removing weights from both sides of the scale equally, the class determined the blue weight has a weight of 3. Lisa apologizes that the blog is short due to other homework and provides the homework assignments for the week.