English Training
Built for Global Teams

Live online lessons for the meetings, presentations, and everyday conversations your team has at work.

Training options

Business English

Meetings, presentations, professional writing, and everyday conversations with colleagues and clients.

Speaking & Pronunciation

Practise clear pronunciation, listening, and natural conversation for everyday situations at work.

Individual Professional Coaching

One-to-one lessons for executives, team leaders, and students with specific communication goals.

Meet your teacher

Tatiana Marques

Founder of Yaspeak & TESOL-certified teacher
with 10+ years of teaching experience.

Meet Tatiana

TESOL Professional Certificate
Professional training in English language teaching through Arizona State University.
University Teaching Experience
Two years of language teaching experience at the University of Arkansas.
Fulbright Program Alumna
Teaching exchange program sponsored by the U.S. Department of State.

Yaspeak Intelligence

Every answer adds to the picture. Yaspeak’s AI helps teachers spot gaps, reinforce skills, and choose the right next step for each student.

Tracks what each student knows

Builds a running estimate of skill mastery from every answer.

Knows when to review

Suggests timely review to reinforce skills before they start to fade.

Recommends what's next

Connects learning gaps with the right foundations and the next challenge.

KNOWLEDGE IN MOTION

INDIVIDUAL LEARNING PATHS

Illustrative model · not student data

Research & references8 papers

Research behind the approach

Bayesian knowledge tracing — Knowledge tracing: Modeling the acquisition of procedural knowledge (opens in a new tab)Corbett & Anderson, 1994
Estimates how a learner’s skill knowledge changes as they answer questions.
Graph-based knowledge tracing — Graph-based Knowledge Tracing: Modeling Student Proficiency Using Graph Neural Network (opens in a new tab)Nakagawa et al., 2019
Models connected skills to predict how a learner will perform over time.
Graph attention networks — Graph Attention Networks (opens in a new tab)Veličković et al., 2018
Learns which connections in a graph matter most for each node.
Temporal learning (Hawkes) — Temporal Cross-Effects in Knowledge Tracing (opens in a new tab)Wang et al., 2021
Models how practice on one skill affects others as time passes.
Memory and forgetting — Replication and Analysis of Ebbinghaus’ Forgetting Curve (opens in a new tab)Murre & Dros, 2015
Replicates the forgetting curve to examine how retention changes over time.
Diagnosing misconceptions — Combining Item Response Theory and Diagnostic Classification Models: A Psychometric Model for Scaling Ability and Diagnosing Misconceptions (opens in a new tab)Bradshaw & Templin, 2014
Combines overall ability estimates with diagnoses of specific misconceptions.
Graph-RAG — From Local to Global: A Graph RAG Approach to Query-Focused Summarization (opens in a new tab)Edge et al., 2024
Uses knowledge graphs and community summaries to answer questions across document collections.
Task difficulty (LLTM) — The linear logistic test model as an instrument in educational research (opens in a new tab)Fischer, 1973
Explains task difficulty through the cognitive operations needed to solve it.

Tell us about your team.

Email us a little about your team and what you’d like to work on. We’ll discuss goals, scheduling, and a pilot.

hello@yaspeak.com

How are lessons scheduled?

Lessons are live and online. We agree on times that work for your team’s time zones during the consultation.

What English levels do you support?

We assess participants before recommending a group or individual lessons. Learning goals and progress reviews are agreed as part of the program.

Can we contract with a U.S. company?

Yes. U.S. B2B contracting is available through Marques LLC. We can discuss the service agreement and invoicing during consultation.