SPED & Related Services
IEP timelines, evaluation dates, service minutes, related services, compensatory hours, accommodations, and goal progress.
Open calculators →Calculator Guide
Teacher Dollar Shelf is a quick-use shelf of calculators and printable tools. Choose the calculator you need, get the math help, then use a free download if you want a form to record the result.
Reading & Literacy
Fluency, reading levels, intervention grouping, and progress monitoring.
Open calculators →Math, Grades & Classroom Calculations
Grades, points, attendance, budgets, school days, and classroom planning numbers.
Open calculators →Behavior & Classroom Data
Frequency, duration, time-on-task, intervention minutes, and progress data.
Open calculators →Homeschool Records
GPA, credits, transcripts, attendance hours, course planning, and graduation tracking.
Open calculators →Preschool & Early Learning
Readiness, routines, eligibility age, daily schedules, and independence planning.
Open calculators →Age, Entry & Eligibility
Exact age, school entry age, assessment age, kindergarten eligibility, and preschool eligibility.
Open calculators →Free Downloads
Printable forms and trackers that help you record or organize results from the calculators.
Open downloads →How to Use TDS
Find the calculator, enter your numbers or dates, and use the result for planning, records, or follow-up notes. For official decisions, always follow your school, program, district, and state procedures.