The Learning Equation · Appendix C
Education Technology glossary
37 terms, defined the way the book uses them.
A
- ACV
- Annual contract value: revenue per customer per year.
- Adoption
- A district's or state's formal selection of core instructional materials, usually for six to eight years.
- ARR
- Annual recurring revenue.
B
- B2B2C
- A model in which an institution distributes a product and the learner or parent pays, or the institution pays on the learner's behalf.
- Bundled-services exception
- 2011 Department of Education guidance allowing tuition-share payments to a third party that provides a bundle of services including recruiting.
C
- CAC
- Customer acquisition cost: acquisition spend divided by new paying customers. Blended CAC divides by all new payers; paid CAC by those the spend acquired.
- CAT
- Computer-adaptive test, which selects each item from the student's previous answers.
- COPPA
- The US Children's Online Privacy Protection Act and the FTC rule implementing it.
- Core curriculum
- The primary instructional programme for a subject.
D
- Design effect
- The inflation of variance from clustering, \(1 + (m - 1)\rho\), for cluster size \(m\) and intraclass correlation \(\rho\).
- Desirable difficulty
- A condition that slows initial performance but improves long-term learning.
- Dosage
- The amount of use a product was designed and tested for, such as minutes per week.
E
- Effect size
- The difference between treatment and comparison groups in standard-deviation units.
- ESSA tiers
- The four levels of evidence defined by the Every Student Succeeds Act: strong, moderate, promising and demonstrates a rationale.
- ESSER
- Elementary and Secondary School Emergency Relief: the federal COVID-era K-12 relief funds.
F
- FERPA
- The US Family Educational Rights and Privacy Act.
G
- GRR
- Gross revenue retention: starting revenue less churn and contraction, divided by starting revenue.
H
- HQIM
- High-quality instructional materials: coherent, standards-aligned core curricula.
I
- Inclusive access
- Course materials delivered on the first day and billed through tuition, with an opt-out.
- Intraclass correlation
- The share of outcome variance that lies between clusters such as classrooms or schools.
L
- LMS
- Learning management system.
- LTV
- Lifetime value: the contribution a customer generates over its life.
M
- MDES
- Minimum detectable effect size: the smallest true effect a study has a stated chance of detecting.
- MOOC
- Massive open online course.
N
- NRR
- Net revenue retention: gross retention plus expansion.
O
- OER
- Open educational resources: openly licensed materials free to use and adapt.
- OPM
- Online programme manager: a firm that builds, markets and supports online programmes for a university.
R
- Retrieval practice
- Recalling information from memory to strengthen it.
- Rostering
- Syncing class, teacher and student lists from the student information system to applications.
S
- SIS
- Student information system: the system of record for students.
- Spacing
- Spreading study over time instead of massing it.
- Supplement, not supplant
- The rule that certain federal funds must add to, not replace, state and local spending.
- System of record
- The system that holds authoritative data, such as the SIS for students or the ERP for money and people.
T
- Take rate
- The share of a marketplace transaction the platform keeps.
- Title IV
- The federal student-aid programmes of the Higher Education Act.
U
- UDL
- Universal Design for Learning, a framework for designing for the widest range of learners from the start.
W
- WCAG
- The W3C Web Content Accessibility Guidelines.