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Texas case study

Weiss High School lifted senior Math TSI pass rates with daily Derivita practice

Weiss is one of four comprehensive high schools in Pflugerville ISD, in northeast Travis County. Its College Prep Math team made a short Derivita spiral review the bell ringer each day for seniors who still needed a passing Math TSI score.

~25,000
students in Pflugerville ISD
4
comprehensive high schools
2017
year Weiss High School opened
164
College Prep Math seniors, 2025–26
The challenge

164 seniors started the year without a passing Math TSI score.

Each point below is one College Prep Math senior at Weiss High School. Watch them cross the passing line as daily practice became part of every class.

0 of 164 seniors
passed the Math TSI about 70%
|P| / |S| = 0 / 164
Passed Not yet
The daily loop
  1. 1
    Spiral review as the bell ringer
  2. 2
    Immediate formative feedback
  3. 3
    Real-time data on misconceptions
  4. 4
    Targeted instruction the next day

Counts reported by the Weiss College Prep Math team, 2025–26. Positions on the chart are illustrative.

What changed with Derivita

A daily loop, built into the class period.

Derivita became part of the daily rhythm of College Prep Math, with each day’s practice informing the next day’s teaching.

1

Daily spiral review as the bell ringer

Class opened with a short set of Derivita questions that revisited earlier skills, keeping TSI-tested content in steady rotation through the year.

2

Immediate formative feedback for students

Students saw right away whether an answer worked and got attempt-specific feedback, so they could correct course while the problem was still in front of them.

3

Real-time data surfacing misconceptions

Teachers could see how each bell ringer went as it happened, including which misconceptions were showing up most often.

4

Targeted instruction built on daily performance

Instruction started from that data, with reteaching aimed at the gaps it showed. Then the loop began again the next morning.

Why it matters in Texas

A passing Math TSI score counts for the student and for the district.

Under Texas A–F accountability, one way a graduate shows college readiness is by meeting Texas Success Initiative (TSI) criteria in both reading/language arts and math. Those graduates count toward the College, Career, and Military Readiness (CCMR) indicator.

Meeting the math criteria on the TSI assessment itself can also count toward the CCMR Outcomes Bonus when graduates go on to postsecondary education.

For a senior, a passing score can mean starting college in credit-bearing math.

See Texas standards alignment
What they shared

In the words of the Weiss team.

“There are several things I really love about Derivita. First, it prevents students from sharing answers and copying assignments. What I like most is that I can allow students to redo homework as many times as they’re willing to try until they reach 100 percent on every assignment.”

Mary Ritchins
College Prep Math, Weiss High School

“Derivita turned assessment into actionable instruction, so I could respond to student needs every day and help more students reach TSI success.”

College Prep Math teacher
Weiss High School

“Our teachers truly love Derivita and they’d probably riot if I didn’t get the licenses renewed.”

District Math Specialist, Pflugerville ISD

See what a daily loop could look like in your district.

We can walk your team through how Derivita supports TSI and CCMR goals, from grade 6 through Calculus III.

Sources: Outcomes and quotes reported by the Weiss High School College Prep Math team and Pflugerville ISD, 2025–26. District enrollment from Community Impact reporting on Pflugerville ISD (2026). Weiss High School history from whs.pfisd.net. Accountability details from the Texas Education Agency’s 2026 A–F accountability framework and CCMR Outcomes Bonus guidance.