# Maths – Division

We have looked again today at how we can best divide.

Our conversation centred around:

1. BEFORE Grade 5 – did you have a G4 or G3 teacher that taught you a great way to divide and you understood it? Did your parents or another family member teach you a way to do this that made sense to you? Has a friend taught you? If so, stick with it (but stay open-minded as always). About half of us THINK we know how to divide accurately. Many are unsure.

2. GRADE 5 – Can your child ACCURATELY and CONSISTENTLY divide using a previously taught method OR a ‘long division’ method OR a ‘short division’ method? Many children make basic errors and then are not sure if she or he is right? What can you do?

Mr. Weekes recommends building up (as always) from “What You Know”. The following method builds from individual understanding. For example:

189 divided by 13. I ‘know’ that 10 x 13 = 130 which now means I only have to divide 59 by 13 (189-130=59). If 10 x 13 = 130 then 5 x 13 must be half of that … which equals 65. 6 too many. So my answer must be 10 + 4 (times 13) = 14 remainder 7 (or 14.54).

1684 divided by 12. I ‘know’ that 100 x 12 = 1200 > so immediately my question is reduced to 484 / 12 (1684-1200=484). 10 x 12 = 120, so 40 x 12 = 480 plus 4 left over. Answer then has to be 100 + 40 r 2 = 140 r 2 (or 140.3)

3. We also worked through some ‘long’ and ‘short’ division problems today.

5W students had 5 problems to work through today to show HOW s/he best works with division problems. They were:

541 / 6
983 / 7
689 / 12
817 / 14
768 / 34

‘Bonus ones’: 1249 / 16, 5483 / 37 and 14,292 / 138

Perhaps you could ask your child which way she or he works with division.

Your child will describe what method he or she found easiest to work with today in the comment box below.

5W students – please work through an example question of your choice – a ‘quite hard for me’ question. Be CLEAR. Read Mr. Weekes’ example – is it clear to you? If not, please let me know!

# So how do you multiply?

What method do you use? What method works for you? Mum’s? Dad’s? Last year’s teacher? Mr. Khan’s? Jack’s? Which? It doesn’t matter which one, as long as it works for you.

# Welcome to The Hour of Code

The founders of Facebook, Microsoft, and Google all started their journeys with just one line of code. This week 5 million students in 33,000 classrooms across 167 countries will be trying out code as part of Computer Science Education Week. Khan Academy created an ‘Hour of Code’ lesson. At the end of the hour, students will have (hopefully coded their very own greeting card to send to someone this holiday season:

If they can type, they can code. Coding may seem a little scary to some, but Khan Academy have made a fun hour of coding that’ll have them building things in a snap. They have custom made a tutorial for students that requires no prior experience and is good for grades 3 to 12 and beyond – anybody can learn:

# Adding and subtracting fractions word problems

For those of you NOT on Twitter (tsk, tsk!) – here’s a screenshot that you should be mysteriously getting from your child this week, indicating proficiency in dealing with word problems dealing with fractions with different denominators. It doesn’t have to be 5 consecutive correct ones – well at least this week 🙂

If you don’t, please talk to your child. She or he can do this at home too on Khan Academy. And they aren’t that straight forward! Try one.

# Would you like to check what Grade 5 maths looks like on one link?

Khan Academy – Grade 5 (Content was selected for this grade level based on a typical curriculum in the United States). If you want harder or easier stuff, search for the curriculum one grade level higher or lower.

This is a GREAT tool for Home Learning. Watch a video or 2, try some of the questions. Get stuck – click ‘get a hint’ or watch the video again, or watch the second video – there’s normally at least 2 videos.