Calendar for Child's Stickers

Not one for the teachers this time. This one's for the parents...

So, my eldest started Reception in September 2019. Since, she's brought home various stickers (due to her hard work, obviously). We've been looking for somewhere to keep them.

Here's what we've done:

Going forward, I have purchased a 2020 calendar and put it in my daughter's room. If she comes home with a sticker, we'll add it to that date on the calendar. Come 2021, we can reflect on her year... Hopefully, a calendar full of stickers!

Maths Question of the Decade

In about October time, someone twigged on that the decade was coming to an end. All we've heard since is 'decade', 'decade', decade'...

As it's my daughter's birthday, my mind shifted to a possible maths problem... (in a similar fashion to the Birthday Riddle): 

So, I'm 36 and I'm entering my 5th decade. 36 and 50 (ie 5 decades) are a fair distance apart. The children currently in Years Four, Three, Two... are only just entering their second decade.

So, here's the question:

How long would someone have to be alive to enter their second decade at the earliest opportunity?

How long would someone have to be alive to enter their second decade at the latest opportunity?

How long would someone have to be alive to enter their fifth decade at the earliest opportunity?

How long would someone have to be alive to enter their fifth decade at the latest opportunity?

How long would someone have to be alive to enter their tenth decade at the earliest opportunity?

How long would someone have to be alive to enter their tenth decade at the latest opportunity?

Or, any other similar questions that may come to mind...

What's the longest a decade can be? What's the shortest a decade can be? (NB: Leap Years ;-))

Desk Calendar Problem

So, I saw this on a colleague's desk. It got me thinking: "These are six-sided cubes. So, how can twelve digits split as a six and a six represent all thirty-one days of a month?"

It's a problem that makes use of trial and error, make a model and test and thinking logically. I made a sheet to introduce the problem:

The sheet, with differentiated support and my answer can be found here.

I wonder how many combinations of answer there are...

Órlagh's Birthday Riddle

Yesterday, my daughter celebrated her second birthday and today she's in the fourth year that she's been alive. How can this be true?

It is true, I know 'cos it's my daughter. I'm going to give that statement to my class this week to see if they can figure out how it can be true.

In case you hadn't already worked it out... She was born on 31/12/2014. She therefore spent sometime (not much) in 2014, also 2015 and 2016. As it's now 2017, that's a fourth (calendar) year. The years are actually irrelevant as the answer is she was born on New Year's Eve and two years and one day later, it's now New Year's Day.