Day 29 Decimals Study Guide

6th Grade Math Standards: 6.NS.3 Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.

The Learning Objective: Divide with decimal divisors and decimal dividends

Quote of the Day: “When your attempt rate is high, each individual failure becomes a lot less significant…Accepting failure doesn’t just make risk-taking easier. In a surprising number of instances, it’s the only reliable path to success.” – Ron Friedman

Question from Yesterday (as always from a student): "Why do we say 'slide' the decimal in division problems? Is it possible to get a quotient that is greater than 1 and less than 1?"

Assessment: Marker boards check. In groups of 4 students found the solution to 4 different problems. They had to take the sum of the hundredths place of all four problems on their marker board.

Agenda:

1. Frayer Model of the 4 problems 
2. Quote, Star Student, and Questions of the Day
3. Repeating decimal problems (on marker board) 
4. Study Guide
5. Exit Ticket (1.1 divided by 0.06) 

Glass-Half Full: Something that the pre-assessment this year and my memory from last year served me with was that students struggled with repeating decimals. Looking at the problems we have done to date in this unit, and it is easy to understand why. Today's exit ticket helped me relay to students the idea that they have to continuously bring down zeros and how to express that they do not have to stay in math for the rest of their lives because this problem is not ending.

Regrets: At what point we drifted off because of the questions of the day. The drifting off wasn't a problem. We were breaking down the reason that some quotients were more than 1 and others were less than 1. It's all about the relationship between the dividend and the divisor. I think this investigation would take 90% of the students the entire block to wrap their heads around. If I'm looking for something at the end of the year to return to as part of an investigation, this would be engaging.

Another larger scale problem to tackle is what divisors cause repeated decimals to happen and why?

Link of the Day: Football season has gotten to Dan Meyer.