**Past**

My number sense journey started in the late 1980's, when I started 9th grade. Back then, the only resources available to coaches and students were practice tests, worksheets, and each other's minds. I don't remember having access to any type of number sense training guides or textbooks. Google wouldn't show up for another decade, and YouTube for another 6 years after that. If we wanted to find out how to solve a specific type of problem, we just had to rely on our coaches or

*figure it out*.

**Present**

Now there are many resources available to aspiring number sense champions. If you are lucky enough to live in a school district with a strong UIL Academic program, you may have more study materials than you can use. But if you're like the students in my area, you could really use more help. Well, you're in luck!

**Number Dojo**brings the power of learning mental math into the hands of the student.

**Future**

We aim to be the most complete resource for number sense available. In addition to the fantastic app that is ready for you to download, we will provide instructions, examples, and worksheets each week. Keep checking back for more content--we have a lot to share!

**2016 TMSCA Tests**

This year on the 15 middle school number sense tests, we counted a whopping

**219**different concepts. Most of those concepts showed up fewer than 5 times total over the course of the year. But there were 38 "frequent fliers" that showed up at least 10 times. 15 concepts appeared, on average, at least once per test:

- AddFracRecip (18)
- AddSeqOdd (16)
- AddSequence (17)
- ConvDistEng (19)
- DiffSquares2 (15)
- EstMultWhole (21)
- FunctionExpo (18)
- MultDistrib2 (16)
- MultFracWhole (16)
- OrderOfOper2 (16)
- Reciprocal (16)
- RemainExp (16)
- SetsSubsets (17)
- SolveX (16)
- Triangles (16)

**48 (of the 219) most common concepts**would be able to answer

**over half**of the 1200 questions this year.

As you can see, many different concepts showed up only a few times.

By concentrating on the concepts on the right half of the chart, you can answer many more questions.

**So Now What?**

For the next few weeks, I will share with you my hand-picked, most common, concepts appearing in questions 1-10 on the number sense tests. After that, we'll move on to questions 11-20, etc. Before too long, you'll have at your disposal a sequential, searchable, number sense-opedia. I hope you enjoy!