--- title: Backpropagation Explained for Beginners (Part 2): There... description: Part 2 of a beginner-friendly series on backpropagation. Builds on Part 1 by introducing the chain rule as a systematic method for computing gradients in a... canonical: https://daily.dev/posts/backpropagation-explained-for-beginners-part-2-there-has-to-be-a-better-way-nh7wdzpsa twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Backpropagation Explained for Beginners (Part 2): There Has to Be a Better Way | daily.dev og:description: Part 2 of a beginner-friendly series on backpropagation. Builds on Part 1 by introducing the chain rule as a systematic method for computing gradients in a... og:url: https://daily.dev/posts/backpropagation-explained-for-beginners-part-2-there-has-to-be-a-better-way-nh7wdzpsa og:image: https://api.daily.dev/og/posts/nH7wdZPsA.png og:image:alt: Backpropagation Explained for Beginners (Part 2): There Has to Be a Better Way og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Backpropagation Explained for Beginners (Part 2): There Has to Be a Better Way **[Towards Data Science](https://daily.dev/sources/tds)** · 12 min read · 0 upvotes · 0 comments ## Summary Part 2 of a beginner-friendly series on backpropagation. Builds on Part 1 by introducing the chain rule as a systematic method for computing gradients in a neural network. Walks through each partial derivative step-by-step (loss w.r.t. prediction, prediction w.r.t. activation, ReLU derivative, and pre-activation w.r.t. weight), then assembles them via the chain rule to recover the same gradient derived classically in Part 1. Concludes by identifying the inefficiency of recomputing shared partial derivatives for each parameter separately, setting up Part 3's exploration of how backpropagation reuses intermediate results in a single backward pass. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Backpropagation Explained for Beginners \(Part 3\): How Backpropagation Really Works](https://daily.dev/posts/backpropagation-explained-for-beginners-part-3-how-backpropagation-really-works-epjfnxkab) · Towards Data Science · 0 upvotes · 0 comments - [Backpropagation Explained for Beginners \(Part 1\): Building the Intuition](https://daily.dev/posts/backpropagation-explained-for-beginners-part-1-building-the-intuition-219g21wnz) · Towards Data Science · 0 upvotes · 0 comments --- Tags: [#deep-learning](https://daily.dev/tags/deep-learning), [#neural-networks](https://daily.dev/tags/neural-networks), [#gradient-descent](https://daily.dev/tags/gradient-descent) [View this post on daily.dev](https://daily.dev/posts/backpropagation-explained-for-beginners-part-2-there-has-to-be-a-better-way-nh7wdzpsa) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Backpropagation Explained for Beginners (Part 2): There Has to Be a Better Way","url":"https://daily.dev/posts/backpropagation-explained-for-beginners-part-2-there-has-to-be-a-better-way-nh7wdzpsa","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/backpropagation-explained-for-beginners-part-2-there-has-to-be-a-better-way-nh7wdzpsa"},"datePublished":"2026-07-28T12:49:23.934Z","dateModified":"2026-07-28T12:49:43.647Z","description":"Part 2 of a beginner-friendly series on backpropagation. 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