Potential Paths: Path 1: The teacher can use Gamma - an AI-driven presentation tool that formats, designs, and suggests graphics and text for slides based on the teacher's written content. It also offers customization options including colors, fonts, and themes, along with the ability to work collaboratively. Path 2: The teacher can opt for MagicSlides which is another AI-powered tool offering automated creation of professional presentations from text. It also supports customization in design elements like themes, fonts, color palettes, and layouts.

Final Narrative: Given your requirement for a presentation tool that can convert your written notes into slides, along with design and formatting customization, the Gamma tool would be the best fit.

Gamma uses smart AI technology that converts your typed ideas into comprehensive and appealing presentations. Just input your text, and Gamma will suggest a design appropriate for your content. It also offers a versatile range of customizable templates, so you have the freedom to make the slides look exactly the way you want, using different colors, fonts, and themes.

Moreover, if you want to add more than just text to make your message crystal clear, Gamma allows the addition of other elements such as videos, GIFs, charts, or websites. The tool also offers a collaboration feature, so if you wish to work on the presentation along with peers, it's absolutely possible right there.

In terms of accessibility, Gamma operates in your web browser, so you don't need to download anything, and users have complimented its ease of use, with a clean layout and straightforward navigation.

As per your convenience, Gamma provides three plans - Free, Plus, and Pro with varying features and benefits. You could start with the free plan and decide to upgrade based on your experience and requirement.

By choosing Gamma for your presentation creation process, you can blend text and graphics effectively while gaining the ability to customize your presentations according to your preference and requirement.