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 4^th and 5^th 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/