CGI –Nuts and BoltsDay 1

Carrie Manningmanningc@nlrsd.org

Survey

Please take five minutes to complete the CGI Survey.

What is CGI?

With your table group discuss and record on chart paper what your group thinks CGI is.

What is CGI?CGI is not a traditional primary school mathematics program. Children in CGI classrooms spend most of their time solving problems, usually problems that are related to a book theteacher has to read to them, a unit they may be studying outside of mathematics class, or something going on in their lives. Various physical materials are available to children to assist them in solving the problems. Each child decides how and when to use the materials, fingers, paper and pencil; or to solve the problem mentally. Children are not shown how to solve the problems.

What is CGI?

A CGI classroom is where you build on the math knowledge of your children according to what they know…You don’t build objectives that say they should be doing this, this, this, and this. You sort of take what they know and build from there.(Susan Gehn, First Grade Teacher)

Ranking Activity

On the ranking sheet, read and solve each problem. Scratch paper has been given at each table. Thinking about the different problems from a child’s perspective, rank their level of difficulty on a scale with one being least difficult and 11 being most difficult.

CGI- Problem Types-Join

Join Result Unknown (JRU)Join Change Unknown (JCU)Join Start Unknown (JSU)

James has 5 clay animals. During art he made 9 more clay animals.

How many clay animals does James have now?

Jane has 7 trolls in her collection. For her birthday, her friends gave her some more trolls. Now she has

11. How many did her friends give her?

Frog had some tools in his garden shed. Then, Toad gave him 4 more tools for his birthday. Now Frog has 10 tools. How many tools did Frog

have to start with?

CGI- Problem Types-Separate

Separate Result Unknown (SRU)Separate Change Unknown (SCU)Separate Start Unknown (SSU)

Sam had 11 stickers. He gave 5 stickers to his sister.

How many stickers does Sam have left?

Dylan made 15 cookies. He gave some to his best friend.

He has 8 cookies left. How many cookies did he give to his

best friend?

Some frogs were playing in the pond. 4 hopped away. Now

there are 9 frogs in the pond. How many were in the pond to

begin with?

CGI- Problem Types-Part-Part-Whole

Whole Unknown (PWU)Part Unknown (PPU)

16

There were 6 adult elephants and 3 baby elephants in the jungle. How many elephants are there in the jungle?

17

There are 12 elephants in the jungle. Nine are adult elephants and the rest are baby elephants. How many are baby elephants?

CGI- Problem Types-Compare

Compare Difference Unknown (CDU)Compare Quantity Unknown (CQU)Compare Referent Unknown (CRU)

19

• Willy has 12 crayons. Lucy has 7 crayons. How many more crayons does Willy have than Lucy?

20

• Arthur has 6 colored pencils. D.W. has 2 more colored pencils than Arthur. How many colored pencils does D.W. have?

21

• Toad has 12 pencils. He has 3 fewer pencils than Frog. How many pencils does Frog have?

Evaluate Problem RankingRank the Problems

Part 2

Problem Type Card Sort

Create your own problems using the poems in your packet for inspiration. There will be a prize for the most creative question!

Time for a prize!

26

When I visited the jungle, I saw 17 elephants. Some went to the zoo. Now there are 5 elephants left. How many elephants went to the zoo?

What Problem Type?

The E

nd

Homework: Read Chapter 2.Mark 3 AH-Ha’s from the chapter using 3 sticky notes. (Please take 3 sticky notes.) Be ready to discuss in the morning.