MASTERYTRAIL · EXPLORE / EXPLORA

Choose a subject. Discover what you can do.

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Empieza con una lección o actividad. Para continuar con el contenido que requiere una cuenta, inicia sesión o crea una cuenta. El acceso de estudiantes también depende de la inscripción y el consentimiento.

Guest learning work is temporary and is not added to a student record. Students should use their teacher’s join instructions or parent-managed enrollment. Creating an account does not bypass consent or enrollment requirements.

Kindergarten · Grade 1 · Grade 2

Little paper discoveries, together

Six public parent-led lessons: three math discoveries and three reading adventures with sounds, sh, and two-part words. A grown-up reads; the learner draws, folds, points, or tells. Paired Parent Guides and printable manual logs are included.

No sign-in needed. These are selected activities, not K–2 enrollment, full courses, or saved learning.

Open K–2 paper activities →

High school subjects

Choose a subject.

Learn an idea, study a worked example, try guided practice, and apply it independently. Your work here is temporary and ungraded. Each lesson covers a selected topic, not an entire course or exam.

Your subject

Choose a subject, then open its lesson.

Algebra I

From situations to linear equations

Build and check linear models using stories, tables, and plotted points.

Your work is temporary and ungraded. This lesson covers one selected topic. Sign in or create an account to continue into account-required content; enrollment and consent still apply.

Explore Algebra I