<![CDATA[Pre-service teachers need to have mastery of mathematics teaching aids. Meeting intensity in order to master mathematics teaching aids is certainly needed. Obstacles in the form of limited time for learning mathematics teaching aids need to be minimized. One of the benefits of technological advancement is QR Code. Information about a mathematics teaching aid and how to use it quickly will be obtained by integrating mathematics teaching aids with a QR Code so that pre-service teachers can easily learn these mathematics teaching aids. The product developed in this study is a mathematics teaching aid that is integrated with a QR Code. The development model that will be used in this research is the 4D model, which includes: (1) Define, the developer analyzes problems and potentials; (2) Design, the developer makes an initial product (prototype) or a product design tailored to existing needs and potentials; (3) Development, divided into two activities, namely: expert appraisal and developmental testing; (4) Disseminate, at this stage the activity carried out is validation testing. The results of the validator's assessment indicate that the QR Code integrated mathematics teaching aid produced in this study falls into the strong category. The developmental testing and disseminate stages for integrated mathematics teaching aids QR Code cannot be done because they are constrained by the Covid-19 pandemic that occurred at the time of this research.]]>
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