## Tuesday, October 22, 2013

### Lesson 4- Year 2

1)      A car is driving down a road. Draw the graph, and tell the story.
 Minutes past Distance (miles) from the house 1 1 2 2 3 5 4 7 5 7 6 8 7 9 8 9 9 9 10 5 11 3 12 0

We drew a graph for this on the white board. The story they told went like this- “for the first 2 minutes the car was driving slowly because there was a police car behind it. Then, the police car drove away in the other direction. The car sped up because there was the parent had to get a child to day care. Then for the 4th and 5th minute, the car wasn’t moving because it stopped at the day care and the parents was talking to the instructor. Then the parent drove to the store, and bought a few things, so the car stood in place, and then started driving home. In 3 minute, the car was home.” I had them think about what it means when the time is changing but the distance isn’t (I made a mistake of making it in miles, because none of the kids knew what miles were).
2)      The temperature in the Arctic changes over the week. Kids: make a graph, explain how the temperature is changing.
 Day 1 3 Day 2 5 Day 3 9 Day 4 9 Day 5 9 Day 6 6 Day 7 0
They can’t draw the graph on their own yet, but they can plot the points and connect them with line segments. Ask: “If the temperature changes, but the day doesn’t?” “What if the day changes but the temperature doesn’t?”

3)      Dima, Sasha, Max, and Katya have different pets. Each of them has a kangaroo, a squirrel, a cat, or a bird. Who has which pet? Make a table.
Clues:
§  Dima has a pet that has feathers.
§  Sasha and Katya have pets that don’t start with the first letter of their name.
§  Max’s pet and Dima’s pet have to be kept apart because Max’s may eat Dima’s.
I had the kids draw a chart and put Xs were things can’t be and color the square in when there is surely something there (find the intersection of the name and the animal). It was a good problem for building charts.
4)      There are two villages- one always lies, one always tell the truth. They visit each other sometimes. You come into a village, but you don’t know which one it is. You ask a villager walking by “do you live in this village?” Make a chart of possible answers/liar/truth-teller/lying village/truth-telling village.

They got kind of confused by this one because there were many options of what the villager could answer, but it was still a good exercise for them to think about.

http://www.education.com/worksheet/article/smiley-sudoku-second/
http://www.education.com/worksheet/article/kenken-puzzle-second-1/