How Do You Know? app builds and strengthens expressive language skills, listening comprehension and verbal reasoning skills.  Students learn to answer “WH” and “HOW” questions by talking about key details and relevant information.  They practice making inferences to explain how they know!  Studies reveal that critical thinking, like making inferences, are essential to meet core curriculum standards and to understand what’s going on in the classroom.

How Do You Know? app targets the following language goals

  • Question comprehension: who, what, where, when & how
  • Verbal reasoning strategies to make inferences
  • Critical thinking skills to distinguish key details
  • Build vocabulary and semantic knowledge
  • Recognize and label associated vocabulary
  • Practice reading comprehension at sentence level
  • Verbal reasoning skills

Favorite Features of Teachers, Parents & Therapists

Lots of content; vivid pictures and over 10 categories to choose from:

  • Places, Activities, Weather, Emotions, Conditions & State of Being, Time, Events, Holidays,  People & Occupations, Animals, Geography
  • Data collection with percentages for both Wh-questions & How questions
  • Different levels of audio and visual prompts
  • Study Guide section called “Let’s Talk About It!”
  • Email reports and share results with parents, teachers, & therapists
  • 100 name capacity; edit to add/delete name
  • "Read to Me" option; audio on/off
  • Practice reading at phrase & sentence level
  • Reinforcement; encouraging audio feedback for correct /incorrect responses
  • “Listen Again” button

How Do You Know? app correlates with the core curriculum for speaking and listening standards.

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How Do You Know? app is part of the UK Educational App Curriculum Gateway. The app was reviewed by teachers and certified to have curriculum relevance and fits with the new national curriculum and specific learning objectives.

Educational App Store
Certified Teacher App Library
Certified Parent App Library

How Do You Know? app is created by a certified speech language pathologist.

The author: Lynn Epstein, MS, ASHA certified speech language pathologist with over 30 years of clinical experience in child language and communication development. How Do You Know? is based on successful strategies and lessons used with thousands of students to strengthen communication and reasoning skills.


How Do You Know? app is an effective tool to practice and reinforce critical thinking skills. Children use a language framework to practice verbal reasoning by answering “how” questions and explaining the inferences they made. While playing, students learn how to answer questions with relevant information and associated vocabulary.

Reasoning and critical thinking are necessary skills for meeting core curriculum standards and competence across the curriculum. Students engaged in critical thinking must make associations that connect problems with their prior knowledge (Pellegrini, 1995). Research shows questioning prompts students to engage in a research process that fosters higher-order thinking skills and social-moral attitudes (Daniel et al., 2005). Difficulty answering wh- questions affects a child academically, linguistically, and socially. (Parnell, 1986). Lessons that explicitly teach students how to explain what they know are effective training tools in advancing critical thinking skills. (Abrami et al 2008).


Don't Stress!
How Do You Know? app likes to keep things private.
We respect your privacy! We do not sell or share any information.
Plus, we don't like hidden costs so there are no in app purchases.
We also don't like distractions, so you won't find any advertisements either.
That's the privacy and particulars policy!

Thank you~
Lynn Epstein, MS,SLP-CCC