From November 2025 through April 2026, Yeti Confetti ran an efficacy study across Bronx District 10 schools - tracking Kindergarten through Grade 5 students with access to Yeti Confetti Kids. What emerged was a clear, compelling picture: when students use Yeti consistently, they grow.
How We Defined "Qualified"
Students were considered qualified if they used Yeti Confetti Kids for at least 15 minutes per week over 20 weeks. The first 45 minutes of usage were removed from analysis to account for the time that Yeti needs to calibrate to each student’s level. They also demonstrated a minimum of 60% accuracy.
What the Data Showed
Out of 1,135 students, 526 met the consistency threshold. The study showed a clear pattern: consistent engagement is associated with stronger outcomes.
Finding 1: Consistent Usage Affects Outcomes
1135
Total Students
Across ten District 10 schools
526
Qualified Students
15+ min/week across 20 weeks
3.8x
ELA Growth
vs. inconsistent users
1.6x
Math Growth
vs. inconsistent users
Students who used Yeti Confetti Kids consistently showed 3.8x the ELA growth and 1.6x the Math growth of inconsistent users.
Please note that more classes used Yeti for ELA and fewer for math, which is a likely explanation for more pronounced ELA growth.
With built-in aural support reading aloud the questions and answer choices on screen, Yeti Confetti serves as a supplemental tool for all students and especially those below grade level to reinforce foundational literacy and math practice through formative practice.
Finding 2: Translanguaging Makes Content Accessible
0.28
Grade Level Growth
Qualified students with translanguaging support
0.30
Grade Level Growth
Qualified students without translanguaging support
0.10
Grade Level Growth
Unqualified students (inconsistent users)
Qualified students who received translanguaging support posted comparable average grade uplift as their counterparts without it.
Both qualified groups (with and without translanguaging support) achieved 3x the growth of the students who did not use YCK consistently across English and Math.
With translanguaging support providing explanations in both English and the home language, Yeti Confetti proudly supports MLL/EB students by making grade-level content accessible to all students - without compromising on rigor - regardless of their English language proficiency.
Here we see that Yeti distinguishes English language proficiency from academic ability.
0.27
Grade Level Growth
116 qualified students with Spanish support
0.35
Grade Level Growth
6 qualified students with French support
0.17
Grade Level Growth
3 qualified students with Arabic support
2.17
Grade Level Growth
1 qualified students with Vietnamese support
The student who received Vietnamese translanguaging support posted 2.2 grade level growth in just 20 weeks.
Our data also sheds light on students' language proficiency vs. English proficiency, which is often difficult to determine.
With Yeti Confetti, teachers can identify MLL students who are strong in their L1 (home language) and can support them differently from those who lack language foundations in both English and their home language.
Finding 3: Many Students Learn with Yeti During Breaks
1,135
Total Students
Across ten District 10 schools
306
Students
who learned with Yeti during break weeks
237
Students
who learned with Yeti for >15 minutes during break weeks
27%
Students
who learned with Yeti during break weeks
More than 1 out of 4 students voluntarily learned with Yeti Confetti as if they were in class - during break weeks.
This is a testament to how much students enjoy learning with Yeti Confetti Kids.
Equity, Engagement & What Teachers Can Now See
Translanguaging Makes Content Accessible
Yeti's translanguaging support provides content scaffolding in a student's home language, allowing multilingual learners to access rigorous academic content without lowering expectations. Qualified students who received language support posted nearly the same average grade-level uplift as peers who did not need it. Qualified students who received language support posted comparable average grade-level uplift as qualified peers who did not need it.
Helping Teachers See What Is Hard to See
Yeti Co-Pilot gives teachers a clear window into which students are using language support and how those students are progressing over time. For ENL educators and classroom teachers alike, this visibility is a powerful tool for identifying needs and responding with precision.
Students Chose to Use Yeti During Breaks
During school breaks, 306 students across District 10 logged in voluntarily, and 237 of those students still met the 15-minute-per-week threshold. Because this happened on students' own time, it suggests they don't experience Yeti as extra work. They engage because they want to.
Consistent Practice
Yeti Confetti Kids supports the kind of regular, calibrated practice that the study connected to stronger academic growth.
Rigorous Access for All Learners
Multilingual learners can engage with grade-level content. Language support closes the access gap without lowering the bar.
Teacher Insight
Co-Pilot helps educators better understand student needs and act on them in real time.
Student-Driven Motivation
Break-week engagement shows that students return to Yeti by choice, a meaningful signal of authentic motivation.
