Chalktalk
Founded 2019 · 32 employees on LinkedIn · 6 known investors
ChalkTalk provides a platform that helps teachers personalize instruction and track student progress in literacy and numeracy, designed to amplify classroom instruction without requiring extensive training.
Also known as ChalkTalk
Investors · 6
Company profile
researched Aug 2026ChalkTalk sells personalized learning software for English language arts and math that produces teacher-led instructional materials rather than only self-paced student content. Teachers select a curriculum — PSAT/NMSQT, PSAT 10, SAT, PreACT, ACT, TSIA2, high school math (Algebra I, Geometry, Algebra II) or high school English for grades 9-12 — sync their school schedule, and choose an in-person, distance-learning or hybrid model. Students take an online placement test to establish starting points, after which the platform adaptively generates instructional material for teachers, small-group activities and individual practice exercises for every class in the school schedule.
The instructional model runs in three steps: whole-group instruction (delivered in person by projecting materials or remotely by screen-sharing via web-conferencing tools such as Zoom, Google Hangouts or Microsoft Teams, with presenter tools), small-group activities in which the platform's algorithms group students to compare answers and the teacher facilitates discussion using a generated answer key and discussion guide, and asynchronous personalized practice and intervention tracked from a teacher dashboard. Each step is described as adaptive at the student, small-group and whole-class level, and an asynchronous option exists for the first two steps via an adaptive scope-and-sequence built from the schedule the teacher sets. Administrators receive real-time insight into student performance and growth, and skill-level reports are used to target instruction. Additional features referenced include pacing guides, placement and post tests, and a Study Hall practice feature.
According to a May 2021 press release, ChalkTalk's machine-learning software generates standards-aligned curriculum from placement-test results and lets teachers build personalized courses in under two minutes, with the stated aim of reducing lesson-prep work. The same release described plans to expand the product from 11th-grade ELA and math to all 12 grade levels and to invest in edtech ecosystem integrations.
Founding story
ChalkTalk was founded by Mohannad (Mo) Arbaji, who serves as CEO. Per the 2021 press release, Arbaji attended Brown University on a full scholarship, studying electrical engineering, computer engineering and economics; after achieving perfect scores on the SAT I and SAT II he wrote what the release describes as the first English-language-learner SAT prep book and bootstrapped an earlier education company from $300 into a franchise operating in three countries by his senior year of college.
Business model
ChalkTalk licenses its software to schools and school districts, which deploy it inside existing class schedules; the 2021 press release identifies school administrators such as principals and superintendents as the purchasing decision-makers, motivated by state test results tied to their contracts and budgets. Implementation is supported by account managers and partnership managers who run data coaching sessions, in-person professional learning community meetings and pre/post test scheduling.
Recurring revenue from school and district subscriptions, reported as annual recurring revenue (ARR) in 2021 press coverage.
Traction
The company's site states that in one semester students using ChalkTalk saw up to 6x more growth on the SAT/ACT than those receiving a full year of traditional classroom instruction, attributed to College Board and ACT published data. District examples include Peoria High School (Arizona) with an 11% increase in math and 10% in ELA scores; Hillsborough County (Florida), where ELA students spending at least six hours on the platform averaged a 2-point ACT increase and math students completing more than 40 lessons gained over 3 points; Levy County (Florida), where 216 students completed 33,622 practice questions and videos over three months for an average 1.78-point ACT improvement; and Memphis-Shelby County Schools, where TISA-eligible students increased 2.5x from placement to exit test over six weeks. The 2021 press release reported ARR growth from $45,000 to $1.25M in 11 months, a 200-600% increase in state test scores after 15 weeks versus peers after a full year of traditional instruction, and named customers including Boston Public Schools, Orange County Public Schools, Duval County Public Schools and Dysart Unified School District.
Latest developments
In May 2023 ChalkTalk published a podcast interview with founder and CEO Mo Arbaji covering the company's origin, growth and plans. The company's implementation guide documents district-level deployment patterns, including semester-long integration followed by an eight-week intensive bootcamp in Broward County and structured usage expectations of 40-45 minutes three times per week at a Fort Worth ISD school.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
An edtech provider in the K-12 personalized learning and standardized test preparation segment, with reported traction in Florida districts and additional deployments in Arizona, Texas, Tennessee, California and Massachusetts.
Positioned against fully self-paced competitors that deliver practice videos and content snippets for individual consumption: ChalkTalk instead generates lesson plans and teaching materials for teacher-led instruction that mirrors existing class flow, works synchronously or asynchronously and in person or remotely, and adapts to the school's own curriculum choice and calendar.
Technology
Machine-learning software that uses student placement-test results to generate standards-aligned curriculum, lesson slides, group activities, answer keys, discussion guides and adaptive individual practice mapped to a school's schedule; algorithms also group students for small-group work. The platform includes teacher dashboards and presenter tools for remote delivery, and analytics/skill-level reporting for administrators.
Go-to-market
Direct sales and demo requests through the company website, with district-level implementation support from dedicated account and partnership managers, pacing guides, teacher surveys and 1:1 feedback sessions, plus PLC-based teacher enablement. The 2021 press release states that ChalkTalk grew from $45,000 to $1.25M in ARR over the prior 11 months without a sales team, and that 90% of its users at that time were in Florida.
K-12 public schools and school districts, primarily high school grades 10-12 teachers and students, including large districts; the 2021 press release states the platform can also be adapted to higher education, corporate training and lifelong learning.
Geography
United States, with reported concentration in Florida (Hillsborough, Broward, Levy, Volusia, Duval, Orange counties) and additional schools and districts in Arizona (Peoria, Dysart), Texas (Fort Worth ISD, Denison ISD), Tennessee (Memphis-Shelby County Schools), California (Nicholas Academic Center, Santa Ana) and Massachusetts (Boston Public Schools). Florida Funders, which led the seed round, is based in Tampa, Florida.
History
ChalkTalk initially raised $0.5M on SAFE notes before a $3M seed round announced in May 2021 with participation from Florida Funders, which described it as the sixth investment from its Fund 2. Proceeds were earmarked for edtech ecosystem integrations, expansion of the product from 11th-grade ELA and math to all 12 grade levels, and growth of engineering, sales support and marketing teams. In May 2023 the company published an interview in which founder and CEO Mo Arbaji discussed the company's origins, early obstacles and roadmap with Adam Giery of Capital Class.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 2
launches, deals, and filingsChalkTalk published a blog post and podcast interview in which founder and CEO Mohannad (Mo) Arbaji discussed the company's origin story, early challenges, growth and future plans with Adam Giery of Capital Class.
Florida Funders announced its sixth investment from Florida Funders' Fund 2, LLC into ChalkTalk's $3M seed round, to support edtech ecosystem integrations, expansion of the product from 11th-grade ELA and math to all 12 grade levels, and growth of the engineering, sales support and marketing teams. ChalkTalk had previously raised $0.5M on SAFEs.
$3M source ↗
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- Chalktalkchalktalk.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Chalktalk do?
- ChalkTalk is a machine-learning personalized learning platform that generates ELA and math lessons and practice for teachers.
- Who are Chalktalk's investors?
- Chalktalk's investors include 37 Angels, Entrepreneurs Roundtable Accelerator (ERA), Florida Funders, Jurassic Capital, ECMC Group, Miami Angels.
