- $49
2025-2026 Esti-Mysteries (The 125 Esti-Mysteries from September 2025-May 2026)
- Download
- 12 files
125 Esti-Mysteries are included in this set of downloadable materials!
In 1 quick download, you'll have EVERY Esti-Mystery that was created during the 2025-2026 school year (from Sept. 2025-May 2026).
Esti-Mysteries are organized by levels - in separate files - within the zip file you download!
The Annual End of School Year Sale!
Save $50!
Normally $99, the entire set is on sale for only $49 through June 4.
125 Esti-Mysteries were created during the 2025-2026 school year.
This is your chance to get all of them at once!
1-Click Download!
Organized by Levels!
Every Esti-Mystery Posted During the 2025-2026 School Year!
125 Esti-Mysteries
Sorted by Level
25 Beginning Level (Kindergarten)
25 Level 100 (grades 1-2)
25 Level 200 (grades 1-3)
25 Level 300 (grades 3-8)
25 Level 400 (grades (4-12)
Normally $99, the entire set is on sale for only $49 through June 4.
What is included?
125 Esti-Mysteries
in a Single Download
Sorted for you by Level
+ a Number Charts Variety Pack ($10 value)
+ 12 Tips for Using Esti-Mysteries
Get ALL of them in a single download!
Number Charts Variety Pack
A variety of charts designed to work with Esti-Mysteries
Choose the chart - or charts - that work best for you!
AND
12 Tips for Using Esti-Mysteries
by Steve Wyborney
All 125 Esti-Mysteries
that were posted during the 2025-2026 School Year!
+ The Number Charts Pack
+ Steve's Esti-Mystery Tips
Normally $99
The entire set is on sale for only $49
through Thursday, June 4.
Click here to Purchase your copy:
There are 25 Esti-Mysteries in each of 5 levels!
That's 125 Esti-Mysteries!
Now you can get them all at once!
Completely Organized by Level!
Kindergarten Esti-Mysteries have all been organized together.
Level 100 (Grades 1-2) have all been organized together.
Level 200 (Grades 1-3) have all been organized together.
Level 300 (Grades 3-8) have all been organized together.
Level 400 (Grades 4-12) have all been organized together.
Did you know you can use Esti-Mysteries from more than one level?
For example, 3rd grade can use Esti-Mysteries at levels 100, 200, and 300!
For more information, see the chart below.
Every level includes 25 Esti-Mysteries.
Each grade level can use Esti-Mysteries from multiple levels.
Chart options are embedded in the Esti-Mysteries!
Did you know?
Every Esti-Mystery (grades 1-12) has 3 versions!
1. The Original Version of the Esti-Mystery
2. The Embedded Chart Version
3. The Animated Chart Version
You receive ALL the versions
so you can use the one that works best for you!
The Original, The Embedded Chart, The Animated Chart
Click here to Purchase your copy:
The Original Version
This version displays the clues while students write on their own and discuss the clues with each other!
The Embedded Chart Version
The student experience is exactly the same but there is an embedded chart for the teacher to write on.
If you want a chart to display - and write on - this is a great option!
If you want a chart to display - and write on - this is a great option!
The Animated Chart Version
The chart is animated in this version. After each clue appears, students read the clue, discuss the ideas, possibly adapt their estimate...
...and then you click and any number eliminated by that clue will be greyed out on the chart.
This version is a really powerful way to show which numbers are eliminated by which clue.
...and then you click and any number eliminated by that clue will be greyed out on the chart.
This version is a really powerful way to show which numbers are eliminated by which clue.
Choose the Version that Works Best for You!
Every beginning level (Kindergarten) Esti-Mystery has an animated chart.
The chart is built in - and it automatically eliminates numbers after every clue.
You can show the clue and have your students discuss the ideas...
...then click to show which numbers were eliminated by that clue.
You can show the clue and have your students discuss the ideas...
...then click to show which numbers were eliminated by that clue.
Also Included!
Number Charts Variety Pack ($10 Value)
Choose the chart (or charts) you would like to use.
This pack is inlcuded in the Zip File with all the Esti-Mysteries!
Do you recognize this moment?
You may have seen this...
...right before you heard the cheering.
Everything You Will Receive
125 Esti-Mysteries
All 125 Esti-Mysteries that were posted this school year (2025-2026)
The Number Charts Variety Pack
10 Pages of Charts to use in Your Classroom
12 Tips for Using Esti-Mysteries
by Steve Wyborney
12 Tips for Using Esti-Mysteries
by Steve Wyborney
Download all of the files with a single click!
You can download all the files with 1 click!
All 12 files will download in a zip folder.
Inside the zip folder, all of the Esti-Mysteries are organized by level!
Contents
How to Download Your Podia Receipt.pdf
- 111 KB
12 Tips for Using Esti-Mysteries.pdf
- 489 KB
Number Charts Variety Pack.pdf
- 175 KB
25 Beginning Level Esti-Mysteries 2025-2026.pptx
- 9.14 MB
25 Level 100 Esti-Mysteries - Part 1 of 2 - 2025-2026.pptx
- 9.68 MB
25 Level 100 Esti-Mysteries - Part 2 of 2 - 2025-2026.pptx
- 9.01 MB
25 Level 200 Esti-Mysteries - Part 1 of 2 - 2025-2026.pptx
- 9.7 MB
25 Level 200 Esti-Mysteries - Part 2 of 2 - 2025-2026.pptx
- 9.01 MB
25 Level 300 Esti-Mysteries - Part 1 of 2 - 2025-2026.pptx
- 9.72 MB
25 Level 300 Esti-Mysteries - Part 2 of 2 - 2025-2026.pptx
- 8.98 MB
25 Level 400 Esti-Mysteries - Part 1 of 2 - 2025-2026.pptx
- 9.76 MB
25 Level 400 Esti-Mysteries - Part 2 of 2 - 2025-2026.pptx
- 9 MB
Frequently asked questions
Click to see the answers.
How many files are included?
There are 12 files. The Esti-Mysteries are organized by level.
Which Esti-Mysteries are these?
These are the Esti-Mysteries that I created during the 2025-2026 school year.
Specifically, they are the ones created from September 2025 - May 2026.
Do they have embedded charts?
Every Esti-Mystery (grades 1-12) comes in three versions:
1. The Original Version
2. The Embedded Chart Version
3. The Animated Chart Version
*All Kindergarten (Beginning Level) Esti-Mysteries include an animated chart.
1. The Original Version
2. The Embedded Chart Version
3. The Animated Chart Version
*All Kindergarten (Beginning Level) Esti-Mysteries include an animated chart.
End of School Year Sale!
Normally $99.
Save $50 through June 4!
30-Day Money Back Guarantee
If you decide that this is not a good match for you, then simply let me know within 30 days. You'll receive your money back - all of it.
It's that simple.
It's that simple.
Click here to Purchase your copy:
About the Author
Steve Wyborney is a K-12 District Math Coach. During his 31 years in education, Steve has been an elementary classroom teacher and an instructional coach.
2005 Oregon Teacher of the Year
Author of 15 books
Conference & Keynote Speaker
Has also served as a...
Teacher Advisor for Scholastic Book Clubs
BrainQuest Math Teacher Advisor
Steve has given away over 10,000,000 free copies of his math resources and constantly searches for new ways to empower fellow educators.