Kahn Academy – dividing by 1 digit number
Dividing numbers: long division with remainders: Here we go with long division practice. Ever wonder why we call it “long” division? What’s “long” about it, anyway?
Kahn Academy Video – dividing by 2 digit number
Dividing by two digits example 2: Here’s another example where you divide by two digits.
Lesson Plan – Long Division
Long Division – be able to do it and understand it + uses
Standard: 5.NBT.B Perform operations with multi-digit whole numbers and with decimals to hundredths.
Students do long division (+ rounding; decimals; base 60 conversion – decimals to mins)
Hook / Relevance / Interest
Students design a trip from there real home/school to a place they want to visit and determine how long it would take to get there.
Materials: Computer with internet (MAPPS app); paper and pencil
- Students log on to their MAPPS account
Create new map
SAVE SAVE SAVE at each step
- Locate your school and place a pin with title “My School”
- Find a favorite place in the US you want to visit that is at least 4 states away, but no more than 6
Put a pin there, Title it, and tell why you want to visit in the Description
Place a photo or video of the place that works with the Description
- Use line tool to mark the driving route you would take through each state
Begin at (near) the School pin and draw a line following (somewhat) the road
End the line at the state line. Title it with the state name
Begin a new line for each state
(Tip: roads can be seen much better in the second basemap view)
- Teacher assigns a speed for each state (or just put up a list of 6 speeds that students will use for the first, second,… state 60 mph; 70 mph; 55 mph …)
- Student puts each state speed in the Description for each state route line
- Students “Do the math” on paper to determine how long it takes to travel in each state
Put the explanation in each line’s description (240mi divided by 60mph = 4hrs)
This is a great time to (re)introduce Long Division algorithm (see Kahn Academy links above – Boom!)
Teacher decides level of rounding / remainders (whole miles, tenths, full hours, tenths …)
This leads to another cool opportunity for calculating time – if students will be doing hours to the tenth they then must multiply the tenth by 60 to get minutes!
- Student totals all the times and puts this number in the School pin description
- Push PLAY (Click Share to get url to share with parents, others…)
Additionally, students could put photos that show what each state journey looks like on the state lines