Hi, Friends.  I’m posting a brand new, free math resource every school day for the rest of the school year.  This is part 3 of the series.  This effort is my way of spreading encouragement, providing a daily resource to fellow educators, and promoting math joy during a challenging year.  I look forward to posting many more resources as we step into Part 3.  I hope you visit this post often and download a new resource each and every day.


Since November 1 (when I started this process) there have been over 750,000 free downloads from my blog.  Some of those downloads have come from other posts, such as 51 Esti-Mysteries, Splat!, 20 Days of Number Sense, or the Estimation Clipboard.  I’m not sure how many have come from New Esti-Mysteries… Every Day.  It opens up a really interesting estimation question!


The reason I’m moving to Part 3 is that there are now 91 downloadable resources in the first 2 Parts.  The list on each page is lengthy, especially since there is a picture next to every download link, so it helps to occasionally move to a new post.  Each new post allows me to put the newest resources within easier reach for everyone.  More news on making it as easy as possible below, but first…


If you are looking for resources from a previous post,


The link to Part 1 (November 1 – January 8) is here.

The link to Part 2 (January 11 – February 28) is here.


3 Major Updates


The Quick Access Section

Each week, the latest resources will be in the new Quick Access Section on the top of the blog post.  Everything will also be listed in chronological order in the list below, but the Quick Access Section will be a quick and easy way for you to find the latest resources in moments.


The YouTube Videos

I’m posting videos to go along with the Friday Mystery Resources.  You can find my YouTube channel here.  Feel free to subscribe if it’s a good match for you.  I’ll be posting new videos every week.


The Friday Mystery Number Sense Resource Arrives Early

Fridays are the day when the Mystery Number Sense Resource comes out.  Nobody knows what it will be each week, so it’s a surprise.  I’m now posting the Friday mystery resource at the beginning of the week.  So, it’s still a surprise, but you’ll receive it earlier.  This will give you time to see it during the week which will help you decide if you want to use it on Friday.  Of course, you can use any resource on any day of the week, but it seemed like a good idea to share this one sooner.


The Google Slides Question

If you are using Google Slides, everything I’m posting in this series will work in both PowerPoint and Google Slides.  When you download a file by clicking on the blue link, you’ll see that it is a PowerPoint file.  To use it in Google Slides, I recommend these steps:

  1.  After you download the file, drag it into your google drive.
  2.  In Google Drive, click on the file and open it with Google Slides.  Sometimes to do this I right click it and choose Open With… and Google Slides.  You also may be able to simply double-click on the file to open a Google Slides version.
  3.  Click Present.


The Posting Schedule Remains the Same & Everything Is Brand New Each Day

  • Mondays – Estimation Clipboard (All Grade Levels)
  • Tuesdays – Esti-Mystery (Kindergarten)  ;  Esti-Mystery (Grades 1-2)
  • Wednesdays – Esti-Mystery (Grades 1-3)
  • Thursdays – Esti-Mystery (Grades 3-8)
  • Fridays – New Mystery Number Sense Resource  (All Grade Levels)







Quick Access


Monday, April 12

Estimation Clipboard 63  (All Grade Levels)


Tuesday, April 13

Kindergarten:  Kindergarten Esti-Mystery 22  –  “Pencils or Erasers?”

Grades 1-2:  Esti-Mystery 137  –  “Erasing Numbers”


Wednesday, April 14

Grades 1-3:  Esti-Mystery 235  –  “Flat Items Pack Tightly”


Thursday, April 15


Friday, April 16






Monday, March 1

Estimation Clipboard 57  (All Grade Levels)

Tuesday, March 2

Kindergarten:  Kindergarten Esti-Mystery 16  –  “Are Those Miniature Tennis Balls?”

Grades 1-2:  Esti-Mystery 131  –  “Tiny Tennis”


Wednesday, March 3

Grades 1-3:  Esti-Mystery 229  –  “That Clue Eliminated 72”


Thursday, March 4

Grades 3-8:  Esti-Mystery 332  –  “Looks Like Tennis”


Friday, March 5

The Rare Red Splat  –  Part 1

The brand new YouTube video for the Rare, Red Splat is here.


Monday, March 8

Estimation Clipboard 58  (All Grade Levels)


Tuesday, March 9

Kindergarten:  Kindergarten Esti-Mystery 17  –  “Bouncy Billiard Balls”


Grades 1-2:  Esti-Mystery 132  –  “Cue Up a Large Number”



Wednesday, March 10

Grades 1-3:  Esti-Mystery 230  –  “Clues Above the Vase”



Thursday, March 11

Grades 3-8:  Esti-Mystery 333  –  “Billiard Balls Bring Many Clues”



Friday, March 12

All Grade Levels:  The Rare, Red Splat  –  Part 2

This resource has 5 levels so there is something for every grade level.



Monday, March 15

Estimation Clipboard 59  (All Grade Levels)



Tuesday, March 16

Kindergarten:  Kindergarten Esti-Mystery 18  –  “Bear Cubs”

Grades 1-2:  Esti-Mystery 133  –  “Bearly Enough Clues”



Wednesday, March 17

Grades 1-3:  Esti-Mystery 231  –  “Bear Jar”



Thursday, March 18

Grades 3-8:  Esti-Mystery 334  –  “More Than a Square Bear”



Friday, March 19

Cube Connectors  –  Part 1   (All Grade Levels)

Click here to watch the YouTube Video about how to use this resource.




Monday, March 22

Estimation Clipboard 60  (All Grade Levels)


Tuesday, March 23

Kindergarten:  Kindergarten Esti-Mystery 19  –  “Pinning Down the Number”

Grades 1-2:  Esti-Mystery 134  –  “Empty Clothesline”


Wednesday, March 24

Grades 1-3:  Esti-Mystery 232  –  “The Large Pins Don’t Count But They Do Hold a Lot of Clues”


Thursday, March 25

Grades 3-8:  Esti-Mystery 335  –  “Big Clues on Big Clothespins”


Friday, March 26

Cube Connectors  –  Part 2   (All Grade Levels)

Click here to watch the YouTube Video about how to use this resource.



Monday, March 29

Estimation Clipboard 61  (All Grade Levels)


Tuesday, March 30

Kindergarten:  Kindergarten Esti-Mystery 20  –  “Shiny”


Grades 1-2:  Esti-Mystery 135  –  “Planetary”  (updated)


Wednesday, March 31

Grades 1-3:  Esti-Mystery 233  –  “Glossy”


Thursday, April 1

Grades 3-8:  Esti-Mystery 336  –  “It’s Flying!”  


Friday, April 2

How Many Cubes are in Step 5  –  Part 5  –  updated  (All Grade Levels)




Monday, April 5

Estimation Clipboard 62   (All Grade Levels)


Tuesday, April 6

Kindergarten:  Kindergarten Esti-Mystery 21  –  “Blast Off!”

Grades 1-2:  Esti-Mystery 136  –  “Rockets and Reflections”



Wednesday, April 7

Grades 1-3:  Esti-Mystery 234  –  “Rocket Reflections”


Thursday, April 8

Grades 3-8:  Esti-Mystery 337  –  “Bound for Orbit”


Friday, April 9

The Rare Red Splat  –  Part 3  (All Grade Levels)



Monday, April 12

Estimation Clipboard 63  (All Grade Levels)


Tuesday, April 13

Kindergarten:  Kindergarten Esti-Mystery 22  –  “Pencils or Erasers?”

Grades 1-2:  Esti-Mystery 137  –  “Erasing Numbers”


Wednesday, April 14


Thursday, April 15


Friday, April 16








  1. Stephanie Taira on March 31, 2021 at 1:31 am

    Thank you so much! We have been doing these a few times a week for the past few weeks. When i opened the power point today, my students cheered!! They think this is best game ever!! So much thinking and math vocabulary – all planned for me! I don’t have to do anything but download the power point!! Thank you!

    • Steve Wyborney on April 11, 2021 at 9:06 am

      Thanks for sharing this, Stephanie. I love hearing about cheering the math classroom!

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