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Choose an assessment. The Praxis 5165 is a full interactive test; the practice quizzes open as PDFs with answer keys.

Standardized Tests
Interactive

Praxis 5165

Mathematics: Content Knowledge · 66 questions · timer, scoring, review
Interactive

Praxis 5165 — Content Practice

30 original questions across all six content areas · easy → hard · stepped solutions
Class Tests
Interactive

Algebra 1 — Factoring

20 questions · GCF, difference of squares, trinomials, perfect squares, grouping
Interactive

Algebra 1 — Exponents

25 questions (easy → hard) · product, quotient, power, zero & negative exponents
Interactive

Algebra 2 — Complex Numbers

24 questions (easy → hard) · powers of ⅈ, roots of negatives, multiply/divide, conjugates, modulus
Interactive

Algebra 2 — The Real Number System

18 questions · classify numbers (natural → real), simplify-first traps, number line & inequalities
Interactive

Algebra 2 — Expressions, Terms & Zeros

24 questions · terms, evaluating (incl. multivariable & formulas), zeros & undefined values
Interactive

Algebra 2 — 01 HW: Solving Inequalities & Interval Notation

8 questions · the exact worksheet problems · solve, graph & interval notation, with the sign-flip & special cases
Interactive

Algebra 2 — Compound Inequalities (AND / OR)

16 questions · intersection vs union, three-part solving, interval notation with unions, special cases
Interactive

Algebra 2 — Systems by Substitution

14 questions · isolate, substitute, back-solve · plus no-solution & infinitely-many cases
Interactive

Algebra 2 — Systems by Elimination

14 questions · add/subtract, multiply to match coefficients · plus no-solution & infinitely-many cases
Interactive

Algebra 2 — Absolute Value Equations & Inequalities

16 questions · isolate-first, two-case split, and/or forms, special cases & interval notation
Interactive

Algebra 2 — Properties of Numbers (HW)

17 questions in 3 parts · classify by set · name the property · solve & check equations
Interactive

Algebra 2 — Properties of Real Numbers

15 questions · equivalent expressions & naming properties (commutative, associative, distributive, identity, inverse)
Tech & Interviews
Interactive

Java — Fundamentals & OOP

10 questions · syntax, primitives, collections, exceptions, OOP
Interactive

Java / Spring Boot Backend Engineer — Interview

31 questions · Spring Boot/Cloud, Kafka & event-driven, microservices, Kubernetes/Docker, MongoDB, Vault, AI in SDLC, observability · 40 min
Interactive

Web Development

10 questions · HTML, CSS, JavaScript & HTTP fundamentals
Interactive

System Design

10 questions · scaling, caching, databases, CAP, sharding, replication
Interactive

Senior SWE — System Design Round 1

15 scenario questions · mock interview · URL shortener, rate limiter, feed fan-out, payments, caching · 30 min
Interactive

System Performance — Bandwidth, Throughput & Latency

25 questions · bandwidth vs throughput, latency, calculations, optimization, metrics & measurement tools
Branching

🎭 Mock Interview — Design Uber Eats

A branching interview simulation · clarify, decide, get pushed back · functional & non-functional reqs → deep dive → hire signal
Branching

🏛️ Cisco DE / Chief Architect — CIRCUIT Panel

Elite branching panel · enterprise AI platform architecture, agent reliability, retrieval, trust, evals, delivery & leadership · graded to the Distinguished Engineer bar
Interactive

Python — Fundamentals

10 questions · syntax, types, data structures, output prediction
Interactive

GCP Data Platform Engineer — Interview

30 questions · BigQuery, Dataflow/Beam, Dataproc, Pub/Sub, Composer & CI/CD, data modeling, quality/lineage, IAM/VPC-SC/CMEK · 40 min
Tool

💻 Code Sandbox

IDE-style editor · line numbers, tabs, syntax highlighting, copy/download · Java, Python, HTML, CSS, React, Angular

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More assessments can be added later — practice tests and quizzes for other classes drop in here the same way. Run build_assessments.py after adding quiz PDFs.